CN105526967A - Measuring equipment and system based on intelligent terminal - Google Patents
Measuring equipment and system based on intelligent terminal Download PDFInfo
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- CN105526967A CN105526967A CN201511019318.5A CN201511019318A CN105526967A CN 105526967 A CN105526967 A CN 105526967A CN 201511019318 A CN201511019318 A CN 201511019318A CN 105526967 A CN105526967 A CN 105526967A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention discloses measuring equipment and system based on an intelligent terminal. The equipment comprises a power supply, a communication interface module, a singlechip, a digital-analog conversion module and a measuring element; the power supply and the communication interface module are connected with external equipment, are supplied with power by external equipment based on an OTG (On The Go) standard, and communicate with the external equipment based on a USB (Universal Serial Bus) communication protocol; the digital-analog conversion module is separately connected with the measuring element and the singlechip, and is used for converting analog signals acquired by the measuring element into digital signals which can be read by the singlechip; and the singlechip is connected with the power supply and the communication interface module, and is used for receiving instructions of the external equipment and outputting measurement result data of the measuring element. Compared with the prior art, the measuring equipment and system have the advantages of low cost, high convenience, long service life, convenience in operation, convenience in upgrade and maintenance and the like, and therefore have wide market application and promotion prospect.
Description
Technical field
The present invention relates to a kind of measuring equipment based on intelligent terminal and measuring system, belong to technical field of sensor measurement.
Background technology
Current portable or hand-held measuring equipment is made up of handheld terminal and front end survey sensor two parts usually, and handheld terminal can be divided into again the large major part of display liquid crystal display, operation push-button and supplying cell three.Its main operational principle is transferred on a handheld terminal by cable by front end sensors image data, and front end sensors is powered by handheld terminal, as portable PH meter, Portable conductivity meter, Portable temperature meter etc.
There are the following problems for existing portable hand-held measuring equipment: 1. function singleness: existing equipment is the corresponding a kind of sensor of a handheld terminal substantially, because the program be solidificated in single-chip microcomputer just surveys a kind of sensor, so be nearly all pattern one to one.2. software upgrading difficulty: because the CPU (central processing unit) of existing equipment is mainly based on single-chip microcomputer, single-chip microcomputer be substantially do not have systematic, or mini system, and without radio communication functions such as WIFI, 3G, upgrading needs producer to get involved, cycle is long, complicated operation.3. battery is long or efficiency is not high: the carbon alkaline cell of what existing equipment great majority adopted is No. five or No. seven, due to equipment likely for a long time need not, cause dead battery, need to change, delay.4. cost is high: due to matching used one to one when handheld terminal and front end survey sensor, and often user is when purchasing, and need to purchase handheld terminal and front end sensing two modules, the cost of cost is higher simultaneously.5. it is convenient not to use: existing handheld terminal generally brings button and display, and volume ratio is comparatively large, carries inconvenience relatively.How to solve above-mentioned problems of the prior art, feature richness be provided, upgrade simple and easy, cost is low, use more easily measuring equipment be Main Topics of the present invention.
Summary of the invention
Goal of the invention: for problems of the prior art, the invention provides a kind of measuring equipment based on intelligent terminal and system, this equipment can be connected with existing intelligent hand-held terminal (as smart mobile phone or panel computer), powered by intelligent terminal and with intelligent terminal communication, equipment cost is reduced, it is more convenient to use, and software upgrading is simple and easy.
Technical scheme: for achieving the above object, the invention discloses a kind of measuring equipment based on intelligent terminal, comprises power supply and communication interface module, single-chip microcomputer, D/A converter module and measuring sensor; Described power supply and communication interface module, for being connected with external unit, powered by external unit based on OTG interface standard, and based on USB communications protocol and peripheral device communication; Described D/A converter module is connected with measuring sensor and single-chip microcomputer respectively, and the simulating signal for being obtained by measuring sensor converts the digital signal that single-chip microcomputer can read to; Described single-chip microcomputer is connected with power supply and communication interface module, for receiving the instruction of external unit and exporting the measurement result data of measuring sensor.
Further, described measuring equipment also comprises power isolation module, and described power isolation module is connected, for the voltage transitions between externally fed power supply and measuring sensor with power supply and communication interface module and D/A converter module respectively.
As preferably, described power supply and communication interface module comprise USB interface and USB bridging chip.
In a particular embodiment, described power supply and communication interface module also comprise voltage conversion circuit, for 5V voltage transitions is become 3.3V voltage.
As preferably, described USB interface is MiniUSBB type interface or MicroUSBB type interface, and USB connecting line is fixed on described measuring equipment.
In a particular embodiment, described measuring sensor is one or more sensors, and described sensor comprises temperature sensor, humidity sensor, pressure transducer or electrode.
The invention also discloses a kind of control device for above-mentioned measuring equipment, comprise interface driver unit, for loading measuring equipment interface driver, the transmission of instruction and data between realization and measuring equipment; Unit type recognition unit, for reading the unit type of the measuring sensor stored in the single-chip microcomputer of measuring equipment; User interaction unit, for the user interface corresponding according to the display of concrete unit type, obtains and performs user instruction; And updating block, for detecting and performing renewal.
The invention also discloses a kind of measuring system based on intelligent terminal, comprise intelligent hand-held terminal and above-mentioned measuring equipment, described intelligent hand-held terminal is mobile phone or panel computer, is connected with measuring equipment by USB connecting line, exports steering order to measuring equipment and display measurement result.
The invention also discloses a kind of implementation method of the measuring system based on intelligent terminal, comprise the steps:
Initialization: load driver, judges whether to be connected with measuring equipment;
Whether check and upgrade: detect and have network to connect, if had, detect whether have renewal, if had, prompting user upgrades and selects to judge whether to perform renewal according to user;
Identification equipment type: the type signal reading measuring equipment, loads corresponding functional module;
Interface display: according to the functional module loaded, show corresponding operation interface;
User interactions: judged whether user operation, if having, performs user operation instruction, if the operational order of user is for reading measurement data, then sends reading command to measuring equipment, and the measurement result data of display measurement equipment feedback.
Beneficial effect: compared with prior art, tool of the present invention has the following advantages: 1, invention removes traditional portable terminal device matching used with measuring nose sensor, by the intelligent hand-held terminal such as smart mobile phone or panel computer that its functional realiey generally uses people, measuring equipment only needs to realize simple function, obtains power supply by power supply and communication interface and peripheral device communication.Therefore measuring equipment is without the need to bamboo product and production display terminal, operation push-button and power module, greatly can reduce the production cost of equipment, and also only need purchase the measuring equipment of front end when user purchases, support the use with existing intelligent hand-held terminal, significantly reduce the purchase cost of user, also improve the convenience of use, user is in use without the need to bringing special display operating terminal more simultaneously.2, measuring equipment of the present invention can obtain power supply from intelligent hand-held terminal, and without the need to configure dedicated battery, the electric quantity of lithium battery utilizing mobile phone or flat board to carry is comparatively large, and service time is long, and charging is convenient, and last charger baby can also be with for subsequent use, and service time is guaranteed.3, measuring equipment of the present invention is by digital signal and external smart equipment interconnection, and can effectively avoid human body sensing on the impact of sensor, antijamming capability is strong.And adopt power isolation module and high-precision adc further, effectively can improve measuring accuracy.4, the intelligent hand-held terminal such as measuring system mobile phone of the present invention or flat board is as the display of measuring and operating terminal, can develop the APP of the multiple measuring nose equipment of adaptation of feature richness by the power of its operating system.And utilize the WIFI that it carries, the radio network functions such as 3G, can carry out upgrading and upgrading from official download APP dynamically in real time, get involved without the need to producer, update time is short, simple to operate, substantially increases the maintainability of system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Fig. 3 is the structural representation of the embodiment of the present invention 3.
Fig. 4 is the method flow diagram of the embodiment of the present invention 4.
Embodiment
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Embodiment 1: as shown in Figure 1, the embodiment of the invention discloses a kind of measuring equipment based on intelligent terminal, comprises power supply and communication interface module, single-chip microcomputer, D/A converter module and measuring sensor.Wherein power supply and communication interface module are made up of power interface and communication interface, and power interface, according to OTG interface standard, obtains the voltage of 5V and the supply current of more than 8mm from external unit.Supply voltage as single-chip microcomputer is 3.3V, and power interface then uses low voltage difference integrated chip LDO(as AMS1117) change into 3.3V and power to single-chip microcomputer, if single-chip microcomputer supply voltage is that 5V then can save LDO chip.Communication interface adopts USB interface, and measured usb host carries out communication from machine communicaton protocol and external unit, is changed into the communication signal (as SPI, I2C etc.) of Transistor-Transistor Logic level and single-chip microcomputer communication in addition, realize interactive function by USB bridging chip.
The master control of single chip computer measurement equipment, completes the reading to measuring sensor and process, and and peripheral device communication, realize and the docking of upper layer software (applications).Single-chip microcomputer can select the single-chip microcomputer of the communication interface with standard, as the MPS430 series of TI, with interfaces such as SPI, I2C, UART, and has low power consumption characteristic.
Measuring sensor can select different sensors according to different application scenarioss, such as temperature sensor, humidity sensor, pressure transducer, PH sensor, ORP sensor, conductivity sensor, dissolved oxygen sensor, residual chlorine sensor, gas sensor, electrode etc., also configurable several sensor combinations is to be applicable to the measurement application scenarios of compound.Sensor signal is generally faint voltage or current signal, carries out Gain tuning to improve precision and signal condition by the PGA of D/A converter module.D/A converter module can adopt high-precision adc chip (AD7792 as ADI), with the interface such as SPI and reference voltage, acquisition process is carried out to measuring sensor data, sends image data to single-chip microcomputer.
In addition, in order to improve measuring accuracy and security, between power interface and D/A converter module, establish power isolation module, the high frequency of such mobile phone or panel computer equipment can not cause certain interference to sensor, and the damage of sensor also can not have influence on mobile phone or panel computer equipment.Power isolation module can select the isolation module (the DCP series as TI) of Micro Energy Lose, and 5V turns 5V, isolation voltage 1000V.
Embodiment 2: as shown in Figure 2, disclosed in the embodiment of the present invention be a kind of with embodiment 1 in based on the matching used control device of measuring equipment of intelligent terminal, this device can be the application APP operated on smart mobile phone or panel computer, and hardware implementation mode also can be adopted to be integrated on mobile phone or flat board.This control device mainly comprises interface driver unit, unit type recognition unit, user interaction unit and updating block, wherein the interface driver (as USB drives) of interface driver unit load measuring equipment, utilizes the transmission of instruction and data between its API realization and measuring equipment.The model (or type of sensor) of measuring equipment remains on when dispatching from the factory in the single-chip microcomputer of equipment, unit type recognition unit is used for reading the model of connected device by interface driver unit, the unit type that user interaction unit reads according to unit type recognition unit, the function type that institute's attached device is supported can be known, thus the user interface corresponding with it can be loaded, the operational order of user is obtained by user interface, and be sent to measuring equipment by interface driver unit, the result data that display measurement equipment returns.In user interaction unit, user also can carry out the setting of some functions and parameter.Updating block is namely for detecting and performing renewal.
Embodiment 3: as shown in Figure 3, it is a kind of measuring system based on intelligent terminal disclosed in the embodiment of the present invention, comprise the measuring equipment based on intelligent terminal in intelligent hand-held terminal and embodiment 1, this intelligent hand-held terminal is mobile phone or panel computer, current most of mobile phone or panel computer equipment, all with OTG interface, according to OTG interface standard, the voltage of 5V and the supply current of more than 8mm will be provided, the power supply that measuring equipment uses mobile phone or flat board to provide by the corresponding USB interface of configuration, such as measuring equipment configuration MiniUSBB type interface, when being connected with intelligent terminal by USB connecting line, just its power supply can be used with its communication.Conveniently also USB connecting line directly can be fixed on measuring equipment.
The system of current mobile phone or panel computer equipment has IOS, Android, Windows etc., and the developing instrument that system can be used to provide and the interface drive program of equipment carry out the exploitation of respective application software.Software can by the USB port on mobile phone or panel computer equipment and measuring equipment both-way communication, and the version of software can also pass through high in the clouds dynamic update, easy to maintenance.In addition the exploitation of APP should use efficient programmed logic, the response speed of quickening and sensor communication, improves real-time (as calling hardware-related Basic API).And adopt high in the clouds real-time upgrading scheme, when software has a renewal, each software end can be notified in real time, make the renewal of software very timely, safeguard very convenient.
Embodiment 4: as shown in Figure 4, is the implementation method of software in the intelligent hand-held terminal of embodiment 3 disclosed in the embodiment of the present invention, mainly comprises the steps:
(1) initialization.Realize the loading to driving, whether a series of initial work such as connecting sensor.
(2) renewal is checked.Whether have network connect, if had, detect whether have renewal if detecting, if had, prompting user upgrades and selects to judge whether to perform renewal according to user.
(3) identification equipment type.The type signal of read sensor, loads corresponding functional module.
(4) user interface is shown.According to the functional module loaded, show corresponding operation interface.
(5) user interactions.Judging whether user operation, if having, performed user operation instruction, if the operational order of user is for reading measurement data, then having sent reading command to measuring equipment, and the measurement result data of display measurement equipment feedback.
For temperature-sensing system, the performance in embody rule scene of the present invention is described below, hardware selection based on the measuring equipment of intelligent terminal can be as follows: interface chip adopts CH341USB bridging chip, this chip is with 3.3 output voltages, power to single-chip microcomputer MPS430, isolating chip adopts DC100505 isolation, and ADC adopts AD7792.Temperature sensor adopts NTC10K.Mobile phone or panel computer equipment adopt android system mobile phone, load the driving of USB bridging chip, adopt Eclipse platform, develop the software run on mobile phone or panel computer.During use, mobile phone or panel computer equipment are connected with temperature sensing device by USB.After software startup, send the instruction of read sensor type signal, single-chip microcomputer is transmitted to by USB bridging chip, after single-chip microcomputer receives instruction, model is read out from storer and is transmitted to USB bridging chip, after software completes corresponding initialization, read the measurement data of USB bridging chip again, be shown to user again, so just complete a series of communication with mutual, achieve the display of temperature.
The present invention has the advantages such as cost is low, convenience is high, service time is long, easy and simple to handle, has market application widely and promotion prospect.The above is only the preferred embodiment of the present invention, and for those skilled in the art, under the premise without departing from the principles of the invention, the amendment done, replacement or improvement also should be considered as protection scope of the present invention.
Claims (9)
1. based on the measuring equipment of intelligent terminal, it is characterized in that, comprise power supply and communication interface module, single-chip microcomputer, D/A converter module and measuring sensor; Described power supply and communication interface module, for being connected with external unit, powered by external unit based on OTG interface standard, and based on USB communications protocol and peripheral device communication; Described D/A converter module is connected with measuring sensor and single-chip microcomputer respectively, and the simulating signal for being obtained by measuring sensor converts the digital signal that single-chip microcomputer can read to; Described single-chip microcomputer is connected with power supply and communication interface module, for receiving the instruction of external unit and exporting the measurement result data of measuring sensor.
2. the measuring equipment based on intelligent terminal according to claim 1, it is characterized in that, also comprise power isolation module, described power isolation module is connected, for the voltage transitions between externally fed power supply and measuring sensor with power supply and communication interface module and D/A converter module respectively.
3. the measuring equipment based on intelligent terminal according to claim 1, is characterized in that, described power supply and communication interface module comprise USB interface and USB bridging chip.
4. the measuring equipment based on intelligent terminal according to claim 4, is characterized in that, described power supply and communication interface module also comprise voltage conversion circuit, for 5V voltage transitions is become 3.3V voltage.
5. the measuring equipment based on intelligent terminal according to claim 4, is characterized in that, described USB interface is MiniUSBB type interface or MicroUSBB type interface, and USB connecting line is fixed on described measuring equipment.
6. the measuring equipment based on intelligent terminal according to claim 1, it is characterized in that, described measuring sensor is one or more sensors, and described sensor comprises temperature sensor, humidity sensor, pressure transducer, PH sensor, ORP sensor, conductivity sensor, dissolved oxygen sensor, residual chlorine sensor, gas sensor or electrode.
7. for a control device for the measuring equipment according to any one of claim 1 to 6, it is characterized in that, comprise interface driver unit, for loading measuring equipment interface driver, the transmission of instruction and data between realization and measuring equipment; Unit type recognition unit, for reading the unit type of the measuring sensor stored in the single-chip microcomputer of measuring equipment; User interaction unit, for the user interface corresponding according to the display of concrete unit type, obtains and performs user instruction; And updating block, for detecting and performing renewal.
8. based on the measuring system of intelligent terminal, it is characterized in that, comprise intelligent hand-held terminal and the measuring equipment according to any one of claim 1 to 5, described intelligent hand-held terminal is mobile phone or panel computer, be connected with measuring equipment by USB connecting line, export steering order to measuring equipment and display measurement result.
9. an implementation method for the measuring system based on intelligent terminal according to claim 8, is characterized in that, comprise the steps:
Initialization: load driver, judges whether to be connected with measuring equipment;
Whether check and upgrade: detect and have network to connect, if had, detect whether have renewal, if had, prompting user upgrades and selects to judge whether to perform renewal according to user;
Identification equipment type: the type signal reading measuring equipment, loads corresponding functional module;
Interface display: according to the functional module loaded, show corresponding operation interface;
User interactions: judged whether user operation, if having, performs user operation instruction, if the operational order of user is for reading measurement data, then sends reading command to measuring equipment, and the measurement result data of display measurement equipment feedback.
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| CN106444446A (en) * | 2016-09-30 | 2017-02-22 | 内蒙古蒙牛乳业（集团）股份有限公司 | Method and device for acidometer data collecting |
| CN110044981A (en) * | 2019-05-28 | 2019-07-23 | 南京奇崛电子科技有限公司 | Intelligent online ORP sensor |
| CN110044812A (en) * | 2019-05-28 | 2019-07-23 | 南京奇崛电子科技有限公司 | A kind of intelligent online rate of corrosion sensor and its working method |
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Application publication date: 20160427 |