CN109118625B

CN109118625B - Control method of cloud intelligent central control machine

Info

Publication number: CN109118625B
Application number: CN201810892674.5A
Authority: CN
Inventors: 杨月明; 李鹏强; 王晓聪
Original assignee: Henan Yuntuo Intelligent Technology Co ltd
Current assignee: Henan Yuntuo Intelligent Technology Co ltd
Priority date: 2018-08-07
Filing date: 2018-08-07
Publication date: 2021-02-05
Anticipated expiration: 2038-08-07
Also published as: CN109118625A

Abstract

The invention provides a control method of a cloud intelligent center control machine, wherein the center control machine acquires a UDP (user Datagram protocol) multicast request packet sent by a terminal and sends feedback data to the terminal; creating project information and equipment information, and synchronizing the project information and the equipment information to a cloud platform; configuring a control logic interface in a configuration tool of a terminal; the configured control logic is issued to a central control machine; the central control machine acquires and executes the instruction sent by the terminal and sends the execution result of the instruction to the terminal; the central control machine acquires a head image of a current user, which is acquired by the camera; performing binarization processing on the acquired head image, segmenting a background from a target, and removing the background to obtain a set of target pixel points; determining whether target pixel points in the set are noise points one by one; and matching the target pixel point set after the noise point is removed with a target pixel point set stored by the central control machine. The invention can realize centralized control of the entrance guard and meet the diversified requirements of intelligent buildings.

Description

Control method of cloud intelligent central control machine

Technical Field

The invention relates to the technical field of intelligent control, in particular to a control method of a cloud intelligent center control machine.

Background

The intelligent building is a building which takes a building as a platform, integrates architecture, system, application, management and optimization combination into a whole based on comprehensive application of various intelligent information, has comprehensive intelligent capabilities of perception, transmission, memory, reasoning, judgment and decision, forms an integrated body in which people, the building and the environment are mutually coordinated, and provides a safe, efficient, convenient and sustainable development functional environment for people. In the field of building intelligent application, at present, each building is provided with a camera, so that centralized control cannot be realized, and diversified requirements of intelligent buildings cannot be met.

Disclosure of Invention

In view of this, the invention provides a control method of a cloud intelligent central control machine, which overcomes the problems in the prior art, can realize centralized control of access control, and meets the diversified requirements of intelligent buildings.

The invention adopts the following technical scheme:

a control method of a cloud intelligent central control machine comprises the following steps:

the central control machine acquires a UDP (user Datagram protocol) multicast request packet sent by the terminal and sends feedback data to the terminal;

creating project information and equipment information, and synchronizing the project information and the equipment information to a cloud platform;

configuring a control logic interface in a configuration tool of a terminal;

the configured control logic is issued to a central control machine;

the central control machine acquires and executes the instruction sent by the terminal and sends the execution result of the instruction to the terminal;

the central control machine acquires a head image of a current user, which is acquired by the camera;

performing binarization processing on the acquired head image, segmenting a background from a target, and removing the background to obtain a set of target pixel points; the target pixel points comprise pixel points of the head outer contour, the human eyes, the nose and the mouth;

determining whether the target pixel points in the set are noise points one by one, and if so, removing the target pixel points; if not, the target pixel point is reserved;

matching the target pixel point set after the noise point is removed with a target pixel point set stored by a central control machine, if the target pixel point set is matched with the target pixel point set stored by the central control machine, the current user has the authority to enter, the central control machine sends an instruction, a gate is opened, and the door opening time and the user ID are recorded; if the matching fails, the central control machine sends an instruction and collects the instruction again; if the matching cannot be carried out for three times, warning information is sent out.

Preferably, the determining whether the target pixel point in the set is a noise point includes:

and comparing the absolute value of the difference between the gray value of the current target pixel point and the gray value of the adjacent target pixel point, and if the absolute value is greater than a preset value, determining that the current target pixel point is a noise point.

Preferably, the device information includes serial device information, network device information, and bus device information.

Preferably, the cloud platform adopts an MQTT communication mechanism.

Preferably, the method further comprises the following steps: the central control machine collects the state information of the terminal, compares the collected state information with preset information, and sends early warning information to the terminal and sends mails or short messages to a project responsible person if the collected state information exceeds the range of the preset information.

Preferably, the central control machine acquires the light data and the number of people in each floor corridor in the building, and the brightness value of the light is adjusted by the intelligent dimming control module according to the environment brightness, the time interval and the number of people; the light data comprises light switch data and brightness data;

the intelligent dimming control module comprises a control board, a drive board and a display board, wherein the control board, the drive board and the display board are electrically connected in sequence; the control panel is provided with a logic control module, a power supply module, a first interface module, an ID setting circuit module, a 485 circuit module and a wireless communication module; the logic control module is respectively connected with the first interface module, the ID setting circuit module, the 485 circuit module and the wireless communication module, and the power supply module supplies power to each module; the driving board is provided with a zero-crossing detection circuit, an MOS tube circuit, an AC-DC module, an MOS tube driving circuit and a second interface module, the zero-crossing detection circuit is connected with the second interface module, the second interface module is connected with the first interface module, the MOS tube driving circuit is respectively connected with the MOS tube circuit, the second interface module and the AC-DC module, and the MOS tube circuit is respectively connected with the AC-DC module and the zero-crossing detection circuit through a wiring terminal; the display panel is provided with a state indicating unit, an LED driving circuit module and a third interface module, the third interface module is respectively connected with the second interface module and the LED driving circuit module, and the state indicating unit is connected with the LED driving circuit module; and the power supply module is respectively connected with the third interface module and the LED driving circuit module.

Preferably, the logic control module comprises a GPIO interface unit, a first serial port unit, and a second serial port unit, the GPIO interface unit is connected to the first interface module and the ID setting circuit module, respectively, the first serial port unit is connected to the 485 circuit module, and the second serial port unit is connected to the wireless communication module.

Preferably, the central control computer acquires the light data and the number of people of each floor corridor in the building, and the brightness value of light is adjusted by the intelligent dimming control module according to the ambient brightness, the time interval and the number of people, and the method comprises the following steps:

the central control machine acquires the switching data and the brightness data of the corridors of all floors in the building;

whether the corridor illuminating lamp is turned on or not is obtained according to the switching data, if not, the current environment brightness value is obtained, and if the environment brightness value reaches the preset turning-on light brightness value, the corridor illuminating lamp is turned on;

judging the time period of the current time, and adjusting the light brightness to be a first brightness or a second brightness by the intelligent dimming control module according to the time period; and acquiring and identifying image information acquired by the cameras in the corridors of all floors, obtaining the number of people according to the image information, and if the number of people is more than or equal to 1, regulating the light to be the third brightness.

If no person is in the corridor of the floor, no operation is carried out, and the current state is kept.

The invention has the beneficial effects that:

the central control machine acquires and processes the head image of the current user acquired by the camera, has high image recognition precision, can realize the centralized control of the central control machine on the entrance guard at the cloud, and has high safety factor and safe and reliable operation. In the prior art, the light of the corridor in the building still adopts a single control mode such as manual switching, voice control or light control, and the brightness of the light cannot be intelligently adjusted.

Drawings

Fig. 1 is a flowchart of a control method of a cloud intelligent central control machine according to the present invention.

Fig. 2 is a flowchart of step S10 of the control method of the cloud intelligent central control machine according to the present invention.

Fig. 3 is a block diagram of the structure of the intelligent dimming control module.

Fig. 4 is a schematic circuit diagram of a MOS transistor circuit of the intelligent dimming control module.

Fig. 5 is a circuit schematic diagram of a zero-crossing detection circuit of the intelligent dimming control module.

Fig. 6 is a block diagram of the structure of the central control machine.

Detailed Description

As shown in fig. 1, the present invention provides a control method for a cloud intelligent central control machine, including the following steps:

step S1, the central control computer acquires a UDP multicast request packet sent by the terminal and sends feedback data to the terminal;

step S2, creating project information and equipment information, and synchronizing the project information and the equipment information to the cloud platform;

step S3, configuring a control logic interface in a configuration tool of the terminal; configuring a control logic interface, configuring some control logics related to hardware equipment, for example, configuring a light control of an energy source controller, and configuring a time point of a few paths of the energy source relay to perform on or off actions; configuring, for a background music controller, which pieces of music it plays at what point in time or period of time; the system also comprises what hardware equipment connected under central control, and the functions of the hardware equipment are configured according to the actual engineering situation;

step S4, the configured control logic is issued to a central control machine;

step S5, the central control computer acquires and executes the command sent by the cloud end and sends the execution result of the command to the cloud end;

step S6, the central control computer acquires the head image of the current user acquired by the camera;

step S7, performing binarization processing on the acquired head image, segmenting the background from the target, and removing the background to obtain a set of target pixel points; the target pixel points comprise pixel points of the head outer contour, the human eyes, the nose and the mouth;

step S8, determining whether the target pixel points in the set are noise points one by one, if yes, removing the target pixel points; if not, the target pixel point is reserved;

step S9, matching the target pixel point set after the noise point is removed with a target pixel point set stored in a central control computer, if the target pixel point set is matched with the target pixel point set stored in the central control computer, the current user has the authority to enter, the central control computer sends an instruction to open a gate, and the gate opening time and the user ID are recorded; if the matching fails, the central control machine sends an instruction and collects the instruction again; if the matching cannot be carried out for three times, warning information is sent out.

In one embodiment, the determining whether the target pixel point in the set is a noise point includes: and comparing the absolute value of the difference between the gray value of the current target pixel point and the gray value of the adjacent target pixel point, and if the absolute value is greater than a preset value, determining that the current target pixel point is a noise point.

In this embodiment, well control computer acquires the current user's that the camera was gathered head image and handles, and image recognition precision is high, can realize that well control computer carries out centralized control at the high in the clouds to the entrance guard, and factor of safety is high, operates safe and reliable.

In one embodiment, further comprising: step S10, the central control machine obtains the light data and the number of people of each floor corridor in the building, and the brightness value of the light is adjusted by the intelligent dimming control module according to the environment brightness, the time interval and the number of people; the light data includes on-off data and brightness data of the light.

In one embodiment, as shown in fig. 2, step S10 may be implemented as the following steps:

step S101, a central control machine acquires switch data and brightness data of corridors of all floors in a building;

step S102, whether a corridor lighting lamp is turned on or not is obtained according to the switch data, if not, the current environment brightness value is obtained, and if the environment brightness value reaches the preset lighting brightness value of the turning-on lamp, the corridor lighting lamp is turned on; the switch data is 0 for open and 1 for open;

step S103, judging the time period of the current time, and adjusting the light brightness to be a first brightness or a second brightness by the intelligent dimming control module according to the time period;

and step S104, acquiring and identifying image information acquired by the cameras in the corridors of all floors, obtaining the number of people according to the image information, and if the number of people is more than or equal to 1, regulating the light to be third brightness. If no person is in the corridor of the floor, no operation is carried out, and the current state is kept.

Obtaining the number of people according to the image information, comprising: and identifying the image, removing the background in the image to obtain a head outer contour image of the person, and counting the obtained head outer contour image.

In this embodiment, whether to turn on the corridor lighting lamp is first controlled according to the ambient brightness value, because the ambient brightness is affected by the season and the weather conditions, for example, the ambient brightness in the same time period in winter is less than that in summer, and the ambient brightness in the same time period in rainy weather and sunny weather in the same season is different, generally speaking, the sunset time in winter is about 5 pm, and the sunset time in summer is 19: about 30, if only according to the time setting switch corridor lighting lamp then it is not reasonable too like this, the invention is according to the environment brightness value control to turn on and turn off the corridor lighting lamp, has realized the intelligence of corridor lighting lamp is turned on, turned off.

The time period of the current time is judged, the time of the day is divided into different time periods, each time period corresponds to the brightness value of the corresponding corridor illuminating lamp, for example, the first brightness can be 30% of the maximum brightness, and the second brightness can be 60% of the maximum brightness. Because the brightness influences the picture quality of pictures and videos collected by the camera, in order to ensure the safety in a building, when the ambient brightness is lower than a certain value, the corridor illuminating lamp is turned on, and in a time period when a safety accident happens easily, for example, 2 to 5 points in the morning, in order to ensure the picture quality collected by the camera, the brightness value of the corridor illuminating lamp adopts a second brightness value, and in other time periods, the first brightness value is adopted.

Then, according to whether people exist in the corridor, the invention adopts the third brightness value which can be 80-100% of the maximum brightness value, and the brightness value can be adjusted according to the actual situation, thereby meeting the requirements of users and saving the energy resources to the maximum extent.

The central control machine of the invention adjusts the brightness value of the corridor lighting lamp light of each floor by the intelligent dimming control module according to the environment brightness, time interval and number of people, realizes the intelligent on-off and brightness adjustment of the corridor lighting lamp, and meets the diversified requirements of intelligent buildings.

In one embodiment, the method further includes step S11, where the central control computer host collects status information of the terminal, compares the collected status information with preset information, and sends an early warning message to the terminal and an email or a short message to a project manager if the collected status information exceeds the preset information.

The device of the embodiment comprises an energy controller, a light controller, a background music controller, a projector, a central air-conditioning controller and the like. The project information is configuration information for the engineering project, and includes information such as a specific area where the equipment is located, lower-end equipment controlled by the equipment, and equipment groups. The device information comprises serial device information, network device information and bus device information; the project information comprises equipment running state, equipment health state and equipment communication state. The central control machine can be integrated to carry out centralized control on devices such as power amplifiers, relays, lamplight, heating ventilation, air conditioners, televisions, matrixes, electric curtains and the like. The cloud platform adopts an MQTT communication mechanism, so that information is guaranteed, and accurate and timely transmission is realized. According to the access of the cloud system, the information of the equipment under the central control machine is gathered to the cloud in real time, and an intuitive report is formed for a user to refer and analyze. The user can issue the control instruction at the cloud, so that remote control is realized, and an office mode of controlling the equipment at any time and place is provided for the user. Meanwhile, real-time early warning monitoring provides guarantee for safe operation of users.

In this embodiment, as shown in fig. 3, the intelligent dimming control module includes a control board 1, a driving board 2 and a display board 3, and the control board 1, the driving board 2 and the display board 3 are electrically connected in sequence; the control panel 1 is provided with a logic control module 4, a power supply module, a first interface module, an ID setting circuit module, a 485 circuit module and a wireless communication module; the logic control module 4 comprises a GPIO interface unit, a first serial port unit and a second serial port unit, the GPIO interface unit is respectively connected with the first interface module and the ID setting circuit module, the first serial port unit is connected with the 485 circuit module, the second serial port unit is connected with the wireless communication module, and the power supply module supplies power for each module. The logic control module adopts a core chip of Cortex-M3 which is commercially available.

The driving board 2 is provided with a zero-crossing detection circuit, an MOS tube circuit, an AC-DC module, an MOS tube driving circuit and a second interface module, the zero-crossing detection circuit is connected with the second interface module, the second interface module is connected with the first interface module, the MOS tube driving circuit is respectively connected with the MOS tube circuit, the second interface module and the AC-DC module, and the MOS tube circuit is respectively connected with the AC-DC module and the zero-crossing detection circuit through a wiring terminal. The display panel 3 is provided with a state indicating unit, an LED driving circuit module and a third interface module, the third interface module is respectively connected with the second interface module and the LED driving circuit module, and the state indicating unit is connected with the LED driving circuit module; the power supply module is respectively connected with the third interface module and the LED driving circuit module.

The dimming control module of the embodiment comprises a control panel, a driving panel and a display panel, wherein the three parts are arranged in a vertically overlapped mode, so that the space is saved, and the structure is compact.

As shown in fig. 4, the MOS transistor circuit controls the on/off of the MOS transistor through the PWM signal, and controls the output 220VAC output power by adjusting the duty ratio of the PWM modulation signal, thereby finally achieving the purpose of controlling the brightness of the lamp. As shown in fig. 6, the MOS transistor driving circuit performs signal conversion on a PWM driving signal generated by a logic control module on a control board by using a high-speed optical coupler, where DRV1D is the PWM signal generated by the logic control module, and DRV is a driving signal for performing on-off driving on the MOS transistor. As shown in fig. 5, the zero-crossing detection circuit detects the zero-crossing point of the 220V power frequency alternating current, and converts the zero-crossing change of the 220V power frequency alternating current into the change of high and low levels through the optical coupler, so as to inform the logic control module of the zero-crossing point time of the 220V power frequency alternating current, and achieve the purpose of accurately locating the switching time of the MOS transistor. The power supply and the control voltage of the CMOS tube are obtained by 220VAC through the transformer transformation, the full-wave rectification circuit and the filter circuit, and the power supply ground of the CMOS tube circuit is distinguished from the power supply of the dimming control circuit, so that the mutual influence is avoided, and the dimming effect is ensured; secondly, due to the fact that the high-precision zero-crossing detection circuit is arranged, accurate control of on-off of the MOS tube is guaranteed, sudden change is avoided, and stroboflash is prevented; and moreover, the output voltage of the module can be detected, and the output effect is regulated in a negative feedback manner, so that the dimming effect is ensured.

The brightness value output change is mainly realized by controlling the on-off time of the MOS tube by the duty ratio of PWM, and the on-off time of the MOS tube influences the consistency of the output waveform, wherein the key point is the acquisition accuracy of the zero crossing point. As shown in fig. 5, when the voltage difference between the live wire and the zero line satisfies the opening condition of the PNP triode and the optocoupler is turned on, a zero point is obtained. When the zero point is obtained, the SYNC signal is communicated to the logic control module to collect the signal, the PWM control timer is started, the on-off of the MOS tube is controlled, and the purpose of trailing edge dimming is achieved. And the logic control module performs negative feedback regulation on voltage change according to the voltage after real-time detection and modulation, namely, the duty ratio and the frequency of the PWM control timer are adjusted in real time, and compensation regulation is performed on power grid change.

As shown in fig. 6, the central control unit includes an MCU unit, a BOOT configuration unit, a communication and status indication unit, a Zigbee circuit, a LAN interface circuit, an IO interface input/output circuit, a relay output circuit, a RTC circuit, an 485/422 bus, a 232 serial interface circuit, and a power management module, the MCU unit includes a GPIO interface, a serial interface, and an I2C interface, the GPIO interface is respectively connected to the BOOT configuration unit, the communication and status indication unit, the LAN interface circuit, the IO interface input/output circuit, and the relay output circuit, the serial interface is respectively connected to the Zigbee circuit, the 485/422 bus, and the 232 serial interface circuit, the I2C interface is connected to the RTC circuit, the power management module is respectively connected to the MCU unit, the RTC circuit, the BOOT configuration unit, the communication and status indication unit, the Zigbee circuit, the LAN interface circuit, the IO interface input/output circuit, the relay output circuit, the 485/422 bus, and the 232, and a stable and reliable power supply is provided for each part of circuit, and the DC12V voltage is converted into direct current voltages of 5V and 3.3V.

The central control computer in this embodiment includes external interface modules such as a 6-way 232 interface, a 1-way 485/422 bus interface, a relay output circuit, an IO port input/output circuit, a 2-way LAN port, an RTC circuit, a Zigbee circuit, a communication and status indication unit, and a BOOT start configuration unit, and the MCU unit may provide an 8-way serial port interface, a GPIO interface, and an I2C interface, and may integrate control of external devices. The communication and state indicating unit adopts RGB lamps with controllable colors and indicates different working states by displaying different colors and flickering states.

The power management module comprises a power circuit and an overvoltage protection circuit. The relay output circuit adopts a triode SS8050 to drive the HFD41 relay, so that the pull-in and the disconnection of the relay are realized. The IO input part adopts optical coupling isolation input, and effectively prevents external electromagnetic interference and overvoltage from damaging GPIO of the MCU unit. The IO output part adopts an HCF450 chip to realize level conversion output, and 3.3V output of GPIO of the MCU unit is converted into standard 5V output, so that convenience is provided for controlling other external devices.

The LAN port of the invention adopts a KSZ8081RNB interface chip, and the network port adopts an RJ45 network port terminal with a transformer and a communication state indicator lamp and with the model of HR 911105A. The RTC circuit provides a real-time clock for the system, because the RTC can adopt system voltage power supply and battery power supply simultaneously, after the system is powered off, because of having the battery power supply, the real-time clock can not be powered off and can continue to maintain time and not lose, has guaranteed the accuracy of system time. The control chip of the Zigbee circuit adopts a CC2530 chip, carries out data communication with the MCU unit through serial ports UART _ RX and UART _ TX, and through serial port communication, the MCU unit can control the Zigbee circuit module to establish a Zigbee network, thereby facilitating Zigbee communication with other sensors or other modules integrating Zigbee functions, and greatly expanding the use scene under a wireless communication mode.

The BOOT starting configuration unit can realize different combinations of various high and low levels by shifting the dial switch, realize the selection of starting and programming modes and enable the system to have greater flexibility. The MCU control unit adopts an i.MX6UL chip of an NXP company based on a Cortex-A7 architecture, the chip is provided with a plurality of programming and starting modes, and different programming and starting modes are selected by reading the high-low level state of a system starting configuration pin after a system is powered on or reset.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A control method of a cloud intelligent center control machine is characterized by comprising the following steps: the method comprises the following steps:

configuring a control logic interface in a configuration tool of a terminal;

the configured control logic is issued to a central control machine;

matching the target pixel point set after the noise point is removed with a target pixel point set stored by a central control machine, if the target pixel point set is matched with the target pixel point set stored by the central control machine, the current user has the authority to enter, the central control machine sends an instruction, a gate is opened, and the door opening time and the user ID are recorded; if the matching fails, the central control machine sends an instruction and collects the instruction again; if the matching cannot be carried out for three times, warning information is sent out;

the well accuse machine acquires the light data and the number of people of each floor corridor in the building, is by the luminance value of intelligent dimming control module adjustment light according to ambient brightness, time quantum and number of people, includes:

judging the time period of the current time, and adjusting the light brightness to be a first brightness or a second brightness by the intelligent dimming control module according to the time period; acquiring and identifying image information acquired by cameras in corridors of all floors, obtaining the number of people according to the image information, if the number of people is more than or equal to 1, then, people exist in the corridors of the floors, and adjusting the light to be third brightness; if no person exists in the corridor of the floor, no operation is carried out, and the current state is kept;

the intelligent dimming control module comprises a control board, a drive board and a display board, wherein the control board, the drive board and the display board are electrically connected in sequence; the control panel is provided with a logic control module, a power supply module, a first interface module, an ID setting circuit module, a 485 circuit module and a wireless communication module; the logic control module is respectively connected with the first interface module, the ID setting circuit module, the 485 circuit module and the wireless communication module, and the power supply module supplies power to each module; the driving board is provided with a zero-crossing detection circuit, an MOS tube circuit, an AC-DC module, an MOS tube driving circuit and a second interface module, the zero-crossing detection circuit is connected with the second interface module, the second interface module is connected with the first interface module, the MOS tube driving circuit is respectively connected with the MOS tube circuit, the second interface module and the AC-DC module, and the MOS tube circuit is respectively connected with the AC-DC module and the zero-crossing detection circuit through a wiring terminal; the display panel is provided with a state indicating unit, an LED driving circuit module and a third interface module, the third interface module is respectively connected with the second interface module and the LED driving circuit module, and the state indicating unit is connected with the LED driving circuit module; the power supply module is respectively connected with the third interface module and the LED driving circuit module;

the determining whether the target pixel point in the set is a noise point includes: comparing the absolute value of the difference between the gray value of the current target pixel point and the gray value of the adjacent target pixel point, and if the absolute value is greater than a preset value, determining the current target pixel point as a noise point;

the device information comprises serial device information, network device information and bus device information;

the cloud platform adopts an MQTT communication mechanism.

2. The control method of the cloud intelligent central control machine according to claim 1, characterized in that: further comprising: the central control machine collects the state information of the terminal, compares the collected state information with preset information, and sends early warning information to the terminal and sends mails or short messages to a project responsible person if the collected state information exceeds the range of the preset information.