JPH1073658A - Ultrasonic wave measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute a velocity measuring device, a distance measuring device, etc., a utilizing ultrasonic wave with a single measuring device. SOLUTION: In the case of velocity measuring mode, based on a reflerence signal generated in a reference oscillator 1, a wave transmitter 5 transmits an ultrasonic wave. A reception signal consisted by receiving the reflection wave from a measuring object with a receiver 6 and amplifying with a preamplifier 7, is input in a mixer 9 and a Doppler signal is extracted with the mixer 9 and its frequency is measured with a frequency/time difference meter 12. The velocity of the measuring object is operated with a CPU 27 and indicated on a display 14. In the case of distance measuring mode, the reference signal is made intermittent signals with an intermittent controller 2 to intermittently send the ultrasonic wave. By inputting the reception signal in a detector 10 to obtain an envelope signal and the time difference of the intermittent control signals from the intermittent controller 2 is obtained with the frequency/time difference meter. Then the distance to the measuring object is operated with the CPU and indicated on the display 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic measuring apparatus capable of performing distance measurement, velocity measurement of a moving object, and the like by using one ultrasonic wave.

[0002]

2. Description of the Related Art Conventionally, ultrasonic waves are used for various purposes. For example, when ultrasonic waves are reflected by a moving object, the speed of the moving object is changed by utilizing the frequency change due to the Doppler effect. It is used to measure the distance to an object by measuring the time until the ultrasonic wave is reflected back by a distant object and returns.

FIG. 8 shows a configuration of a speed measuring apparatus using the above-mentioned ultrasonic wave. The speed measuring device includes a reference oscillator 1 for generating a reference signal having a frequency Fout, an output amplifier 4 for power-amplifying the reference signal, and an output amplifier 4.
Transmitter 6 for transmitting an ultrasonic wave based on a signal from the receiver 6, a receiver 6 for receiving a reflected wave having a frequency Fin subjected to Doppler shift by a moving object or the like and converting the reflected wave into an electric signal 6, the receiver 6
A preamplifier 7 that amplifies an electric signal from the multiplexed signal to obtain a received signal, a mixer 9 that receives the received signal and a reference signal, extracts a Doppler signal having a difference frequency Fd, and measures the frequency of the Doppler signal. A frequency measuring device 25, a computing device 13 for obtaining the velocity of the moving object based on the frequency measured by the frequency measuring device 25 according to the following equation: Fd = 2 · V · Fout / (C−V) (1) There is a display 14 for displaying the speed calculated by the calculator 13. Note that V in Equation 1 is the speed of the moving object, and C is the speed of sound.

Further, a distance measuring device using an ultrasonic wave, as shown in FIG. 9, generates a reference oscillator 1 for generating a reference signal of a frequency Fout, generates an intermittent signal, and modulates the reference signal with the intermittent signal. 2, an output amplifier 4 for power-amplifying the signal from the intermittent controller 2, a transmitter 5 for transmitting an ultrasonic wave based on the signal from the output amplifier 4, and a receiver for receiving the ultrasonic wave reflected by a distant object. A receiver 6 for amplifying a signal from the receiver 6 to convert the signal into an electric signal to generate a received signal; a detector 8 for detecting the received signal and generating an envelope signal thereof , A time difference measuring device 26 for measuring a time difference between the intermittent signal and the envelope signal, and a distance to a distant object based on a measurement value from the time difference measuring device 26, X = C · Td / 2 (2) Arithmetic unit that operates according to arithmetic expressions And a display unit 14 for displaying the 3 and operation results. Note that X in Expression 2
Indicates the distance to the object, C indicates the speed of sound, and Td indicates the time from transmission of the ultrasonic wave to reception of the ultrasonic wave.

[0005]

However, in the above-described conventional configuration, although many configurations are common in the speed measuring device, the distance measuring device, and the like, each is configured only as a single device. Therefore, the range of use was significantly restricted.

That is, when speed measurement and distance measurement are to be performed, two speed measurement devices and two distance measurement devices are required. Therefore, there is a problem that the maintenance and maintenance are troublesome and the purchase cost of the apparatus as a whole becomes large.

Accordingly, an object of the present invention is to provide an ultrasonic measuring apparatus having a large number of functions by itself, in view of the fact that they have a plurality of common configurations.

[0008]

Means for Solving the Problems To solve the above-mentioned problems, the invention according to claim 1 continuously or intermittently transmits ultrasonic waves having a preset frequency toward an object to be measured.
And an ultrasonic transmitting means for outputting an intermittent control signal indicating the timing of the intermittent transmission when transmitting intermittently; and an ultrasonic wave reflected by the measured object with or without receiving the Doppler effect. Ultrasonic wave receiving means for receiving a sound wave and outputting it as a reception signal, reception signal conversion means for extracting a Doppler signal from the reception signal or generating an envelope signal of the reception signal, and the Doppler signal or the envelope signal When the Doppler signal is input, the frequency of the Doppler signal is measured and a frequency measurement value is output. When the envelope signal is input, the time difference between the envelope signal and the intermittent control signal is calculated. Frequency / time difference measurement means for measuring and outputting a time difference measurement value, the ultrasonic wave transmission means, the reception signal conversion means, and the frequency / time When the difference measuring means is set to the speed measurement mode by outputting a control signal to set at least a speed measurement mode for measuring the speed of the measured object or a distance measurement mode for measuring a distance to the measured object. Makes the received signal converting means extract the Doppler signal,
And causing the frequency / time difference measurement means to output the frequency measurement value, calculate and display the moving speed of the measured object,
Further, when the distance measurement mode is set, the ultrasonic transmitting means transmits the ultrasonic waves intermittently, and the reception signal converting means generates the envelope signal, and
And a calculating and displaying means for causing the frequency / time difference measuring means to output the time difference measurement value to calculate and display a distance to the object to be measured.

That is, when measuring the speed of the object to be measured, the arithmetic and display means outputs control signals to the ultrasonic wave transmitting means, the received signal converting means and the frequency / time difference measuring means, and these means are controlled by the speed. Set to measurement mode. Then, the ultrasonic wave reflected by the measured object by receiving the Doppler effect is received by the ultrasonic wave receiving means, converted into an electric signal, and output as a reception signal. The reception signal conversion means extracts a Doppler signal from the reception signal, and the frequency / time difference measurement means measures the frequency of the Doppler signal. The measurement result is input to the calculation display means, and the calculation display means calculates and displays the speed of the measured object.

On the other hand, when measuring the distance to the object to be measured, the arithmetic and display means outputs control signals to the ultrasonic wave transmitting means, the received signal converting means and the frequency / time difference measuring means,
These means are set to the distance measurement mode. Thereby, the ultrasonic wave transmitting means intermittently transmits the ultrasonic wave and outputs an intermittent control signal. The intermittent control signal indicates a transmission timing when the ultrasonic waves are intermittently transmitted. Then, the ultrasonic wave reflected by the measured object is received by the ultrasonic wave receiving means, converted into an electric signal, and output as a received signal. The received signal converting means generates an envelope signal of the received signal, and the frequency / time difference measuring means measures a time difference between the envelope signal and the intermittent control signal. The measurement result is input to the calculation display means, and the calculation display means calculates and displays the distance to the measured object.

According to a second aspect of the present invention, there is provided an intermittent controller, wherein the ultrasonic transmitting means is provided such that the duty ratio of the intermittent transmission when the ultrasonic is transmitted intermittently can be appropriately set;
And a sound wave intensity adjusting section for adjusting the sound wave intensity of the ultrasonic wave to be transmitted.

That is, when the ultrasonic wave transmitting means receives the control signal from the arithmetic display means and intermittently transmits the ultrasonic wave, the ultrasonic wave transmitting means receives the control signal and the duty ratio of the intermittent transmission wave can be set appropriately. The ultrasonic wave is intermittently transmitted at the set duty ratio.

According to a third aspect of the present invention, the reception signal conversion means includes a mixer for extracting a Doppler signal from the reception signal, a detector for generating an envelope signal of the reception signal, and the reception signal based on the control signal. A signal path switching unit for inputting a signal to either the mixer or the detector and outputting the output to the frequency / time difference measuring means.

That is, when the reception signal conversion means receives the control signal from the calculation display means and is set to the speed measurement mode, the reception signal is input to the mixer, and the mixer extracts the Doppler signal to extract the frequency. When the distance measurement mode is set, the received signal is input to a detector, an envelope signal is generated by the detector, and output to the frequency / time difference measuring means. And

According to a fourth aspect of the present invention, the operation display means selects at least a speed measurement mode and a distance measurement mode and outputs a mode signal indicating the selected mode, and the operation switch based on the mode signal. CPU that outputs a control signal and calculates the speed or distance of the measured object based on the frequency measurement value or the time difference measurement value
And a display for displaying the speed or distance calculated by the CPU.

That is, the operation switch selects at least whether the measurement item is the speed measurement mode or the distance measurement mode, and outputs a mode signal indicating the selected mode to the CPU. A control signal is output to the sound wave transmitting means, the received signal converting means, and the frequency / time difference measuring means. The speed or the distance calculated by the CPU is displayed on a display.

According to a fifth aspect of the present invention, the arithmetic display means has a time counter for counting time, and the operation switch has a stopwatch mode, and the stopwatch mode is selected by the operation switch. It is characterized in that when it is done, it keeps time.

According to a sixth aspect of the present invention, the arithmetic and display means has a time counter provided so as to be able to set a time to be measured, and an audible sound generating section for generating an audible sound, and If the switch has an alarm mode, the alarm mode is selected by the operation switch, and the time set in the time counter is completed,
An audible sound is generated by the audible sound generation unit.

According to a seventh aspect of the present invention, the operation display means has a storage unit for receiving the sports score data and storing the data, and displaying the score on the display means based on the data. It is characterized by.

[0020] In the invention according to claim 8, the arithmetic display means communicates with the outside by wire or wireless to select the speed measurement mode, the distance measurement mode or the stopwatch mode, and displays various information on the display. Characterized by having a communication unit for displaying the information.

According to a ninth aspect of the present invention, the arithmetic display means causes the alarm mode to operate in parallel even when any of the speed measurement mode, the distance measurement mode, and the stopwatch mode is being processed. When the audible sound is generated by the audible sound generator, the processing operation in the speed measurement mode, the distance measurement mode, or the stopwatch mode is temporarily interrupted to generate the audible sound.

According to a tenth aspect of the present invention, the arithmetic display means receives and stores the sports score data even when the speed measurement mode, the distance measurement mode, the stopwatch mode or the alarm mode is operating. And storing the score in the display means and displaying the score on the display means, and causing the communication unit to communicate with the outside.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of the ultrasonic measurement device according to the present embodiment. The ultrasonic measuring device has an ultrasonic wave transmitting unit, an ultrasonic wave receiving unit, a received signal converting unit, an arithmetic display unit, and the like.

The ultrasonic transmitting means controls a reference oscillator 1 for generating a reference signal of a preset frequency Fout, and controls whether the reference signal is a continuous signal or an intermittent signal, and outputs the intermittent signal. In this case, the intermittent controller 2 outputs an intermittent control signal indicating the timing, and the volume 3, which is a sound intensity adjusting unit for adjusting the output level of the ultrasonic wave by adjusting the level of the signal from the intermittent controller 2, An output amplifier 4 for power amplifying the signal from the volume 3 and a transmitter 5 for continuously transmitting or intermittently transmitting an ultrasonic wave oscillated by the power-amplified signal so that the ultrasonic wave is transmitted to the object to be measured. Irradiated.

The ultrasonic wave receiving means receives the ultrasonic wave reflected by the object to be measured and converts the ultrasonic wave into an electric signal.
It has a preamplifier 7 for amplifying the signal from the receiver 6 and outputting it as a received signal.

The received signal converting means includes a mixer 9 for extracting a Doppler signal from the received signal, a detector 10 for generating an envelope signal of the received signal, an input switching unit which is a signal path switching unit for switching inputs of the mixer 9 and the detector 10. Switch 8,
An output changeover switch 11 is provided as a signal path changeover unit for switching the outputs of the mixer 9 and the detector 10.

The frequency / time difference measuring means receives a Doppler signal or an envelope signal from the output switch 11, and when receiving the Doppler signal, measures the frequency of the Doppler signal and outputs it as a measured frequency value. Further, when an envelope signal is received, a frequency / time difference measuring device 12 which measures a time difference between the envelope signal and the intermittent control signal and outputs this as a time difference measurement value is provided.

The arithmetic display means is a frequency / time difference measuring device 1
C that calculates the speed or distance of the measured object based on the frequency measurement value or the time difference measurement value from Equation 2 based on Equation 1 or Equation 2.
It has a PU 27 and a display 14 for displaying calculation results.

The operation display means includes an operation switch 15 for switching various measurement modes, a buzzer 16 as an audible sound generator, a time counter 17 for measuring time, and an outside air temperature signal for measuring an outside air temperature. In order to wirelessly control the operation and display of the output temperature measuring device 18 and operation switch 15,
Wireless handset 19 for wireless communication with the outside, operation switch 15
Interface 20 for wired control of operation and display of
have.

Further, the arithmetic display means is a device for externally operating the ultrasonic measuring device and displaying the measurement result, a wireless display 21 for displaying the result wirelessly, a wireless operating device 22 for performing the wireless operation, It has a wired display 23 for displaying the result in a wired manner, and a wired operating unit 24 for performing a wired operation.

FIG. 2 shows the appearance of the ultrasonic measuring apparatus according to the present embodiment. FIG. 2 (a) is a side view of a pistol-type apparatus main body, and FIG. 2 (b) is an operation switch 15 and a display. FIG. 4 is an explanatory diagram of an operation display panel 100a on which a device 14 is provided.

The main body 100 has a handle 101, an interface 20, a wireless handset 19, a trigger switch 104, and an operation display panel 100a.

The operation switch 15 is a power switch 1
05, an addition switch 106, a subtraction switch 107, a mode switch 108, and a reset switch 109.

The display 14 comprises an upper two digit display 111, a middle two digit display 112, a lower two digit display 113, an upper / middle partition display 114, a middle / lower partition display 115, and four mode displays 116. . The four modes include a speed measurement mode, a distance measurement mode, a stopwatch mode, and an alarm mode.

The intermittent controller 2, the input selector switch 8, the output selector switch 11, the frequency / time difference measuring device 12
And the display 14 receives the control signal from the CPU 27,
The configuration is such that the setting is suitable for each mode.

That is, in the case of the speed measurement mode, the intermittent controller 2 passes the reference signal as it is to form a continuous signal, or modulates the reference signal and outputs it as an intermittent signal having a preset duty ratio. In the case of the distance measurement mode, the reference signal is set to be modulated and output as an intermittent signal having a preset duty ratio.

It should be noted that whether to use a continuous signal or an intermittent signal in the speed measurement mode is determined by the setting of the apparatus and is not determined by a control signal.

The input changeover switch 8 is set so that a received signal is input to the mixer 9 in the case of the speed measurement mode. Accordingly, the output changeover switch 11 changes the Doppler signal from the mixer 8 into a frequency / time difference measuring device. 12 is set. In the case of the distance measurement mode, the reception signal is set to be input to the detector 10, and accordingly, the output changeover switch 11 is configured to input the envelope signal from the detector 10 to the frequency / time difference measurement device 12. Is set.

Note that the input changeover switch 8 and the output changeover switch 11 in FIG. 1 indicate switch positions in the speed measurement mode.

The frequency / time difference measuring device measures the frequency of a signal (ie, a Doppler signal) input via the output changeover switch 11 in the speed measurement mode, and changes the output in the distance measurement mode. It is set so as to measure the time difference between the signal input via the switch 11 (ie, the envelope signal) and the intermittent control signal.

The setting of the display 14 will be described later in the description of the operation of each mode.

The adjustment of the sound intensity of the ultrasonic wave is performed by adjusting the volume 3 as appropriate according to the size of the object to be measured and the distance to the object to be measured, and adjusting the signal level input to the output amplifier 4. . Note that the volume 3 can be replaced with a portion that varies the degree of amplification of the output amplifier 4.

With the above configuration, the operation in the speed measurement mode will be described first. As an initial setting at the time of starting the speed measurement, the mode switch 108 of the operation switch 15 is operated to output a mode signal indicating the speed measurement mode to C.
Send to PU27.

The CPU 27 outputs a control signal based on the mode signal to the intermittent controller 2, the input switch 8, the output switch 11, the frequency / time difference measuring device 12, and the display device 1.
4 to thereby perform the initial setting of each intermittent controller 2 and the like.

The display 14 displays the upper two
Digit display 111, middle two-digit display 112, lower two-digit display 11
The 6 digits of 3 and the middle / lower division display 115 are enabled, and the Km / h portion of the mode display 116 is set to be displayed. Note that the middle / lower-order display 115 indicates a decimal point.

Under these settings, the reference signal generated by the reference oscillator 1 is input to the intermittent controller 2 and is converted into either a continuous signal or an intermittent signal. The ultrasonic wave is output, amplified by the output amplifier 4, and transmitted from the transmitter 5 toward the object to be measured.

On the other hand, the ultrasonic wave transmitted from the transmitter 5
The object to be measured is subjected to the Doppler effect, is a reflected wave whose frequency is changed in accordance with the speed of the object to be measured, is received by the receiver 6, and is converted into an electric signal. The electric signal is amplified by the preamplifier 7 and output to the mixer 9 via the input switch 8 as a reception signal.

In the mixer 9, a Doppler signal is extracted from the received signal, and is input to a frequency / time difference measuring device 12 via an output switch 11. Since the frequency / time difference measuring device 12 is set to the frequency measurement state by the control signal from the CPU 27, it measures the frequency of the input Doppler signal and outputs it as a measured frequency value.

The frequency measurement value is input to the CPU 27, and the CPU 27 calculates the speed of the measured object according to the equation 1, and displays the result on the display unit 14.

Next, the operation in the distance measurement mode will be described. As an initial setting when starting the distance measurement, the mode switch 108 of the operation switch 15 is operated to send a mode signal indicating the speed measurement mode to the CPU 27.

The CPU 27 outputs a control signal to the intermittent controller 2, the input selector switch 8, the output selector switch 11, and the frequency / time difference measuring device 12 based on the mode signal, and the respective intermittent controllers 2 are set. .

The display 14 displays the middle 2 for distance display.
The digit display 112, the lower two digits display 113, and the middle / lower division display 115 are enabled.
Set to display part. Note that the middle / lower-order display 115 indicates a decimal point.

Under such a setting, the reference signal generated by the reference oscillator 1 is input to the intermittent controller 2, converted into an intermittent signal, output to the output amplifier 4 via the volume 3, and output to the output amplifier 4. The power is amplified at 4 and the ultrasonic wave is intermittently transmitted from the transmitter 5 toward the object to be measured.

On the other hand, the ultrasonic wave transmitted from the transmitter 5
Reflected by the object to be measured, received by the receiver 6,
Converted to electrical signals. The electric signal is amplified to a predetermined level by the preamplifier 7 and output to the detector 10 via the input switch 8 as a reception signal.

In the detector 10, an envelope signal of the received signal is generated and input to the frequency / time difference measuring device 12 via the output switch 11. Since the frequency / time difference measuring device 12 is set to the time difference measuring state by the control signal from the CPU 27, the time difference between the input envelope signal and the intermittent control signal from the intermittent controller 2 is measured, and the result is measured by the CPU 27. Output to

Then, the CPU 27 obtains the distance to the object to be measured according to the equation 2, and the display 14 displays the result.

The relationship (duty ratio) between the period Tc of the intermittent control signal and the transmission time Ts is based on the sound velocity C
Tc ≧ 2 · Xmax / C (3) Ts ≦ 2 · Xmin / C, where Xmax is the maximum measurement distance and Xmin is the minimum measurement distance. (4) It is set appropriately so as to satisfy.

In the speed measurement and the distance measurement described above, the sound speed C is given by C = 331.5 + 0.6t (5) where t is the outside air temperature. By correcting the sound speed based on the temperature and reflecting the result, it is possible to correct the error due to the temperature.

Next, the operation in the stopwatch mode will be described. In the stopwatch mode, the intermittent controller 2 is not used because the ultrasonic wave transmitting means, the ultrasonic wave receiving and receiving means, the received signal converting means, the frequency / time difference measuring means and the like are not used.
And the setting of the frequency / time difference measuring device 12 and the like are not performed. Then, the time counter 17 and the display 14 of the operation display means are used.

As an initial setting for starting the stopwatch mode, the mode switch 10 of the operation switch 15
8 to send a mode signal to the CPU 27 indicating the stopwatch mode.

The display 14 displays the top two for time display.
Digit display 111, middle two-digit display 112, lower two-digit display 11
3, the upper / middle division display 114 and the middle / lower division display 115 are enabled.
It is set to display the e portion. The upper two-digit display 111 represents the minute order, the middle two-digit display 112 represents the second order, and the lower two-digit display represents the hundredth second order.

Under such settings, the trigger switch 10
When 4 is pressed at a desired timing, the time counter 17 starts counting time. Then, again, the trigger switch 104
Is pressed, the counting is terminated, and the counting result is sent to the CPU 27.
And the result is displayed on the display 14.

Next, the operation in the alarm mode will be described. In the alarm mode, the intermittent controller 2 and the frequency / time difference measuring device 12 are not set because the ultrasonic wave transmitting means, the ultrasonic wave receiving / receiving, the received signal converting means, the frequency / time difference measuring means, etc. are not used. I can't. Then, the time counter 17 and the display 14 of the operation display means are used.

As an initial setting for starting the alarm mode, the mode switch 108 of the operation switch 15 is operated to output a mode signal indicating the alarm mode to the CP.
Send to U27.

The display 14 has an upper two-digit display 111, a middle two-digit display 112, a lower two-digit display 113, an upper / middle division display 114, and a middle / lower division display 115 for time display.
Is enabled, and the Alarm part of the mode display 116 is set to be displayed. In addition, upper 2 digits display 1
11 is hour order, middle 2 digit display 112 is minute order,
The lower two digits display the second order.

Under these settings, the addition switch 106
Alternatively, the time to be measured is set by the subtraction switch 107, and the trigger switch 104 is pressed.

As a result, the time counter 17 starts counting time, and the buzzer 16 is sounded and notified at the time of coincidence while sequentially comparing the time with the set time.

It is to be noted that the time counting may be of a subtraction type, and the buzzer 16 may be sounded when the counting of the set time is completed.

In the above-mentioned alarm mode, the parallel operation with the speed measurement mode and the distance measurement mode is enabled until the time counter 17 matches the set time, and the set time is counted, that is, the buzzer 16 When it is time to ring the buzzer, the CPU 27 may generate an interrupt to sound the buzzer 16. Needless to say, in this case, the mode returns to the original mode after the buzzer 16 sounds.

If two time counters 13 are provided,
The alarm mode can enable parallel operation with the stopwatch mode in addition to the parallel operation with the speed measurement mode and the distance measurement mode.

Next, the external control function will be described. In the case of wireless communication of the external control function, the wireless transceiver 19 using radio waves, light, sound, or the like is connected to the CPU 27, and the wireless transceiver 1
The operation of the operation switch 15 and the display of the result can be externally performed by the wireless display 21 and the wireless operation device 22 having means capable of communicating with the communication device 9.

In the case of a cable, RS232C, GPI
B, SCSI, and other general-purpose devices used in general computers, and a dedicated serial or parallel interface 20 connected to the CPU 27, and the operation of the operation switch 15 by the wired display 23 or the wired operation device 24. Enables external display of results.

The interface 20 can be operated by a personal computer or the like according to the general-purpose interface as described above.

Next, the sports score input and management function will be described. FIG. 3 shows an example of an external operation device for score input in the case of baseball. The operation device main body 200, an out-count addition switch 201, an out-count subtraction switch 202, a ball-count addition switch 203, a ball-count subtraction switch 204, and a strike addition switch 205 , Strike subtraction switch 206, out / ball / strike count reset switch 207, inning number addition switch 208, inning number subtraction switch 209, front attack switch 210, back attack switch 211, score addition switch 212, score subtraction switch 213, all data It comprises a reset switch 214.

Then, as the play progresses, the referee or a third party operates each switch of the operation device 200, and each time the operation result is transmitted to the ultrasonic measurement apparatus main body in a wired or wireless manner. Thereby, the wireless handset 19 of the ultrasonic measuring device
Alternatively, each data is transferred to the CPU 2 through the interface 20.
7 and stored in a storage unit (not shown).

FIG. 4 shows an example of a score external display in the case of baseball. The display main body 300, the number of innings display 301, the front attack score display 302, the back attack score display 303, the strike /
Ball / out count display 304, ball speed display 3
05.

The score data stored in the storage unit (not shown) of the ultrasonic measuring apparatus is transmitted from the CPU 27 to the wireless handset 19.
Alternatively, the score is sent through the interface 20 and displayed by the score external display.

The input / display of the score does not depend on the outside, but a switch and a display corresponding to the ultrasonic measuring apparatus main body can be provided. It is also possible to use a personal computer or the like as the operation / display means.

Further, the above-mentioned score input / management function can be provided only when various score input switches are operated.
By performing the interrupt processing to notify U27, parallel operation with other functions becomes possible as in the case of the alarm mode.

FIG. 5 is an example of a flow chart showing the flow of operation of the ultrasonic measuring apparatus according to the present embodiment.

When the trigger switch 104 is operated in step A1, the frequency is measured (step A1a), the speed is calculated from the result (step A1b), the speed is displayed (step A1c), and the trigger switch 104 waits again. Become.

On the other hand, at step A1, the trigger switch 10
If No. 4 is not operated, the mode is determined in step A2. If the mode switch 108 is operated to change the mode, the process proceeds to step A3. If not, the process returns to step A1.

When the operation proceeds to step A2 and enters the distance measurement mode, when the trigger switch 104 is operated in step A3, the time difference is measured (step A3a), the distance is calculated from the result (step A3b), and the distance is displayed. (Step A3c), the process returns to Step A3 again, and waits for the trigger switch 104.

On the other hand, in step A3, the trigger switch 10
If No. 4 is not operated, the process proceeds to step A4 to determine the mode. If the mode is changed by operating the mode switch 108, the process proceeds to step A5. If not, the process returns to step A3.

When the operation proceeds to step A5 and enters the stopwatch mode, it is determined whether or not the trigger switch 104 has been operated. If the trigger switch 104 has been operated, time counting is started (step A5a), and the successive elapsed time is measured. While displaying the information (step A3b), it is determined whether or not the operation of the trigger switch 104 for terminating the timing has been performed (step A5c). And the trigger switch 104 for ending the timing
If it is determined that the operation has been performed, the timing is ended (step A5d), and the process returns to step A5.

On the other hand, in step A5, the trigger switch 10
If No. 4 has not been operated, it is determined in step A6 whether the reset switch 109 has been operated. If the reset switch 109 has been operated, the timer is reset (step A6a) and the operation proceeds to step A7, and if it has not been operated, the operation proceeds to step A7.

At step A7, the mode switch 108
It is determined whether or not has been operated, and if it has not been operated, the process returns to step A5. If it has been operated and the mode has been changed, the process proceeds to step A8.

When the operation proceeds to step A8 and enters the alarm mode, if there is a previously set value, the set time is called and the process proceeds to step A9.

Then, at step A9, the addition switch 10
It is determined whether or not No. 6 has been pressed. If it has been pressed, the set value is increased (step A9a), and the process returns to step A9. If not, the process proceeds to step A10.

In step A10, the subtraction switch 107
It is determined whether or not is pressed. If the button is pressed, the set value is decreased (step A10a), and the process returns to step A10. If the button is not pressed, the process proceeds to step A11.

At step A11, the trigger switch 104
It is determined whether or not has been operated, and if it has been operated, the set value is stored (step A11a), and counting of time is started (step A11b). Then, the counting time is displayed (step A11c), and it is determined whether or not the mode switch 108 has been operated. If the mode switch 108 has not been operated, the process returns to step A11c.
Return to 1.

On the other hand, in step A11, the trigger switch 1
If No. 04 has not been operated, the process proceeds to step A12 to determine whether or not the mode switch 108 has been operated. If changed, the process returns to step A1. If not changed, the process returns to step A9.

In the above operation, when an alarm is set in the alarm mode and the set time is reached, an interrupt process shown in FIG. 6 is performed.

That is, when the set time is reached, step B1
, The currently executing process is temporarily interrupted, a buzzer is sounded at step B2 to notify the completion of time counting, and thereafter, the process returns to the original process.

Also, when a score input operation is performed, an interrupt process is performed in step C1 by the process shown in FIG. 7, and the process currently being executed is temporarily stopped.
At 2, C3, data fetching / storing and data display output processing are performed, and thereafter, the processing returns to the original processing.

Note that it is necessary to provide an interrupt mask so that the above-described interrupt processing is accepted during a period during which the measurement accuracy and the like are not affected in the currently executed processing.

The mode of the ultrasonic measurement apparatus shown in FIG. 2 is switched by the number of times the mode switch 108 is operated. It is also possible to arrange only.

The input switch 8 can be omitted because the output switch 11 is provided.

[0099]

According to the present invention, since one ultrasonic measuring device is provided with a speed measuring function, a distance measuring function, and the like,
It has become possible to increase the added value of the device.

Further, since the alarm mode and the score input / management function are provided so that they can be processed in parallel with other functions, convenience is improved.

Further, since external operation and display can be performed by wireless or wired communication, operation and result confirmation can be performed from a place away from the main body, and remote operation and result acquisition by a personal computer or the like can be performed. Data management / analysis has become easier.

[Brief description of the drawings]

FIG. 1 is a block diagram of an ultrasonic measurement device according to the present invention.

FIGS. 2A and 2B are external views of the ultrasonic measurement device of FIG. 1, in which FIG. 2A is a side view and FIG. 2B is a diagram showing an operation display panel.

FIG. 3 is an image diagram of a wired or wireless controller for inputting a baseball score.

FIG. 4 is an image diagram of a wired or wireless display for displaying a baseball score.

FIG. 5 is a flowchart showing a processing procedure in each mode.

FIG. 6 is a flowchart illustrating a procedure of interrupt processing in an alarm mode.

FIG. 7 is a flowchart illustrating a procedure of an interruption process in the score process.

FIG. 8 is a block diagram of a speed measuring device applied to the description of the related art.

FIG. 9 is a block diagram of a distance measuring device applied to the description of the conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reference oscillator 2 Intermittent controller 3 Volume 4 Output amplifier 5 Transmitter 6 Receiver 7 Preamplifier 8 Input changeover switch 9 Mixer 10 Detector 11 Output changeover switch 12 Frequency / time difference measuring instrument 14 Display 15 Operation switch 16 Buzzer 17 Time counter 18 Temperature measuring device 19 Wireless transmitter / receiver 20 Interface 21 Wireless display 22 Wireless controller 23 Wired display 24 Wired controller 27 CPU

Claims (10)

[Claims] 1. An intermittent control signal indicating the timing of an intermittent transmission when an ultrasonic wave having a preset frequency is continuously or intermittently transmitted toward an object to be measured. Ultrasonic wave transmitting means, ultrasonic wave receiving means for receiving an ultrasonic wave reflected by the object to be measured or reflected without the Doppler effect, and outputting the received ultrasonic wave as a received signal; Receiving signal converting means for extracting a Doppler signal from the signal or generating an envelope signal of the received signal, and measuring the frequency of the Doppler signal when the Doppler signal or the envelope signal is input and the Doppler signal is input. And outputs a frequency measurement value, and when the envelope signal is input, measures a time difference between the envelope signal and the intermittent control signal and outputs a time difference measurement value. The frequency / time difference measuring means, the ultrasonic wave transmitting means, the received signal converting means, and the frequency / time difference measuring means measure at least a speed measuring mode for measuring the speed of the measured object or a distance to the measured object. A control signal is output to set the distance measurement mode to be set, and when the speed measurement mode is set, the received signal conversion means extracts the Doppler signal, and the frequency / time difference measurement means outputs the frequency measurement value. Is output to calculate and display the moving speed of the object to be measured. When the distance measurement mode is set, the ultrasonic wave transmitting means intermittently transmits ultrasonic waves and the reception signal converting means. Generating the envelope signal;
An ultrasonic measurement device comprising: a time difference measurement unit that outputs the time difference measurement value to calculate and display a distance to an object to be measured. 2. An intermittent controller, wherein said ultrasonic wave transmitting means is provided so that a duty ratio of said intermittent transmission wave at the time of intermittent transmission of ultrasonic waves can be appropriately set, and a sound intensity of said ultrasonic wave to be transmitted. The ultrasonic measurement device according to claim 1, further comprising: a sound wave intensity adjustment unit that adjusts the sound intensity. 3. The reception signal conversion means includes: a mixer for extracting a Doppler signal from the reception signal; a detector for generating an envelope signal of the reception signal; and a mixer or the mixer for extracting the reception signal based on the control signal. 3. The ultrasonic measurement apparatus according to claim 1, further comprising: a signal path switching unit that inputs the signal to one of the detectors and outputs the output to the frequency / time difference measurement unit. 4. An operation switch for selecting at least a speed measurement mode and a distance measurement mode, outputting a mode signal indicating the selected mode, and outputting the control signal based on the selected mode signal. A CPU for calculating a speed or a distance of the object to be measured based on the frequency measurement value or the time difference measurement value; and a display for displaying the speed or the distance calculated by the CPU. 3. The ultrasonic measurement device according to claim 1. 5. The operation display means has a time counter for counting time, and the operation switch has a stopwatch mode. When the stopwatch mode is selected by the operation switch, the operation display means has a time counter. 5. The time counter according to claim 1, wherein the time counter measures time.
The ultrasonic measuring device according to the item. 6. The arithmetic and display means has a time counter provided so as to be able to set a time to be measured, an audible sound generator for generating an audible sound, and the operation switch has an alarm mode. The audible sound is generated by the audible sound generator when the alarm mode is selected by the operation switch and the time set in the time counter is completed. The ultrasonic measurement device according to any one of claims 1 to 5. 7. The arithmetic display means has a storage unit for receiving sports score data and storing the data.
The ultrasonic measurement device according to claim 1, wherein a score is displayed on the display unit based on the data. 8. A communication unit for selecting the speed measurement mode, the distance measurement mode or the stopwatch mode by communicating with the outside by wire or wirelessly and displaying various information on the display unit. The ultrasonic measuring device according to claim 1, wherein the ultrasonic measuring device has: 9. The operation display means operates the alarm mode in parallel even if any one of the speed measurement mode, the distance measurement mode, and the stopwatch mode is being processed, and outputs the audible sound. 9. The audible sound according to claim 6, wherein when the generator generates an audible sound, the processing operation in the speed measurement mode, the distance measurement mode or the stopwatch mode is temporarily interrupted to generate the audible sound. Ultrasonic measuring device. 10. The sports display device according to claim 1, wherein the operation display means receives sports score data and stores the sports score data in the storage means even when the speed measurement mode, the distance measurement mode, the stopwatch mode or the alarm mode is in operation. 10. The ultrasonic measuring apparatus according to claim 9, wherein a score is displayed on a display means, and the communication section is made to communicate with the outside.