CN104732708B - A kind of power station warning system and method - Google Patents

Abstract

The invention discloses a kind of power station warning system and method, the system includes primary processor, from processor, GPS module, GPRS module, human body infrared detection module, gravity sensor module, voice output module, emergency processing module, the system is on the one hand, power station irregularly, sporadically carry the visitor of downstream river course timely and effectively being notified when lock discharges water, them are made to be withdrawn in time before flood arriving, it is to avoid unnecessary tragedy occurs；On the other hand, system is by detection device to ensureing that the visual plant that power station is normally run is monitored in real time, and preventing the loss of visual plant influences power station normally to run.

Description

A hydropower station alarm system and method

technical field

The invention belongs to the technical field of hydropower stations, and relates to a hydropower station alarm system and method, in particular to a TQ6410-based hydropower station alarm system and method.

Background technique

In China, with the development of science and technology, alarm systems with different types and functions used in various fields can be seen everywhere in the market. However, there is currently no one for when the water storage capacity of hydropower stations reaches the warning capacity, or in dry seasons. When the staff of the hydropower station carry out routine maintenance on the hydropower station, when they randomly lift (lift) the gate to release water, they will promptly and effectively notify the tourists in the downstream river of the hydropower station, so that they can leave quickly before the flood, avoiding the tragedy. And it is a comprehensive, perfect and effective alarm system for real-time monitoring of the safety of important equipment that ensures the normal operation of the hydropower station.

Contents of the invention

In order to overcome the defects in the prior art, the present invention provides an alarm system and method for a hydropower station. On the one hand, when the hydropower station lifts gates and releases water from time to time, timely and effective notification is made to the tourists in the downstream river, so that They evacuated in time before the flood to avoid unnecessary tragedies; on the other hand, the system monitors in real time the important equipment that ensures the normal operation of the hydropower station through detection equipment to prevent the loss of important equipment from affecting the normal operation of the hydropower station.

Its technical scheme is as follows:

A hydropower station alarm system includes a main processor, a slave processor, a GPS module, a GPRS module, a human body infrared detection module, a gravity sensor module, a voice output module, and an emergency treatment module. The alarm system has three functions. One is: when the hydropower station releases water, the main processor sends an instruction to start a high-power player locally to play the pre-set voice prompt of "flood is coming, danger". At the same time, the main processor sends an instruction to call the GPS positioning information reading function, reads the latitude and longitude information of the water discharge hydropower station and separates the read data, converts it into data that can be sent by the wireless network, and then sends the data to the next station in real time through the wireless network. First-level hydropower stations, inform them which hydropower station will release water so that they can make corresponding preparations. The second is: after the human body infrared detects that someone has entered the dangerous area of the gate, the main processor starts a high-power player to play a voice warning to let visitors evacuate from the dangerous area. The third is: after the gravity sensor as an auxiliary monitoring function detects that the device loses the signal, it is judged as an anti-theft alarm signal, and the system calls the GPS positioning information reading function to separate the read data and convert it into data that can be sent by the wireless network, and then Send the data to the management center of the hydropower station or the public security organ to call the police through the wireless network, so that they can know the accurate information of the incident and do corresponding fast anti-theft processing

The main processor MCU needs to select QT6410 provided by Tianxie Technology according to the actual performance of the alarm system. This processor is based on the ARM1176JZF-S of the CPU subsystem and has a JAVA acceleration engine and 16KB/16KBI/D cache and 16KB/ 16KBI/DTCM. 400/533/667MHz operating frequency on TBDV and TBDV respectively. An 8-bit ITU601/656 camera interface, up to 4M pixels for scaling, 16M pixels for fixed. Multi-standard codec provides MPEG-4/H.263/H.264 encoding and decoding up to 30 frames/s, VC1 video decoding up to 30 frames/s.

The slave processor uses AT89C52 single-chip microcomputer. After the human body infrared detects that someone has entered the dangerous area of the gate, the signal is first transmitted to the single-chip microcomputer for processing, and then processed by the main processor. The main processor starts a high-power player to play a voice warning to let visitors Evacuate the danger area. After the gravity sensor detects that the device loses the signal, the signal is first processed by the single-chip microcomputer AT89C52, and then processed by the main processor, and it is judged as an anti-theft alarm signal. The system calls the GPS positioning information reading function and separates the read data and converts it into a wireless network. GPRS can send the data, and then send the data to the hydropower station management center or the public security agency to call the police through the wireless network, so that they can know the accurate information of the incident and do corresponding fast anti-theft processing.

The GPS module, according to system performance requirements and design convenience, selects the GPS module M-87 developed by Taiwan HOLUX Company. M-87 is a product with high sensitivity, fast position correction, low power consumption, and small drift with high cost performance. The connection between M-87 and the main chip is 1.25-6A interface, and the UART3 port of s3c6410 chip is used. In this system, the main processor issues an instruction to call the GPS positioning information reading function, reads the longitude and latitude information of the water discharge hydropower station and separates the read data, converts the data that can be sent by the wireless network GPRS, and then transmits the data in real time through the wireless network. Sent to the next level hydropower station.

Described GPRS module, GPRS module realizes the voice short message alarm signal in the design, and in the design GPRS module is directly connected with main processor QT6410 by serial port, has provided reliability for system design, has saved cost. Choose the wireless GPRS module designed by Baihui Company, which is an efficient and convenient wireless communication module specially provided for freelance designers. No matter when and where, you can freely move the Internet, make calls, and send and receive text messages through laptop computers and other methods. The GPRS module is connected with the main chip using the PH-6A interface and the UART1 port of the s3c6410 chip. After the main processor obtains the latitude and longitude information, it converts it into data that can be sent by the GPRS module, and then sends the data to the next-level hydropower station in real time through the wireless network, and informs them which hydropower station will release water for corresponding preparations.

The human body infrared detection module, in the design of this system, in order to realize that when idlers enter the dangerous area of the hydropower station without permission, the system can detect the entry of people in a timely and effective manner, so the human body infrared temperature detection module is adopted. technology. The DYP-ME003 human body induction module designed by Shenzhen Dianyingpu Technology Co., Ltd. is an automatic control product based on infrared technology. It has the advantages of high sensitivity, high reliability, ultra-low voltage working mode, and can also be powered by dry batteries. . When the detection module detects the output, the output voltage is high level, while the microcontroller AT89C52 can only detect the input low level when detecting the external input signal, so the integrated chip HD74LSOOP of the NAND gate is used to do a level conversion when designing the circuit.

The gravity sensor module, in this system design, in order to prevent the loss of important equipment of the hydropower station, uses the gravity sensor as the trigger detector for the loss of important equipment. Since the output of the gravity sensor is an analog signal, and the output is a very weak millivolt level signal, the analog amplifier OP27G is used to amplify the first-level signal during design, and then input to the analog-to-digital converter ADC0832 for digital-to-analog conversion, so that the microcontroller can The signal detected by the gravity sensor is obtained. In this system design, a resistance strain pressure sensor is used, which is composed of an elastic body, a resistance strain gauge, and a cable, and the internal circuit adopts a Huygens bridge. When the elastic body is deformed under pressure, the resistance strain The resistance value of the chip (conversion element) will change (increase or decrease), so that the bridge will be out of balance, and a corresponding differential electrical signal will be generated for subsequent circuit amplification and processing. The analog amplifier OP27G is a high-precision, low-noise, high-speed amplification, which can be amplified more than 1000 times in one stage and is a cost-effective high-performance amplifier, and the output stage has good load driving capability. The analog-to-digital converter ADC0832 is an 8-bit resolution, dual-channel analog-to-digital converter produced by National Semiconductor Corporation of the United States. Its working principle is to realize the mode conversion by successive approximation; because of its small size, strong compatibility and high cost performance .

Described speech output module, in this system design, in order to realize under the situation that the infrared detection module and the gravity sensor module monitor and output the alarm signal, the system can automatically and timely and effectively voice remind the function of entering the dangerous area and the thieves, this system selects The product WT588D is used as a voice output module. The WT588D voice chip can be set with two function control methods to realize functions such as voice playback, voice stop, loop playback, volume adjustment, and next song playback settings. One is the button control method, which is flexible in triggering. You can set a button arbitrarily to realize pulse cycle trigger setting, pulse non-cycle trigger setting, invalid button setting, level continuous cycle, level continuous non-cycle, level non-continuous The trigger mode can be controlled by looping. The second is one-line serial port software control or three-line serial port software control mode. In this way, the main controller can send instructions through pre-edited programs to realize control functions such as play, stop, and volume adjustment. And in this system, according to the actual needs, select the one-line serial port connection mode to connect with the single-chip microcomputer AT89C52. At the output end of the voice signal, a speaker needs to be connected to the chip. According to the recommendation of the chip manufacturer, the parameter impedance of the speaker is 0.8Ω, and the power is 0.5W.

The emergency treatment module includes an emergency power supply and a backup wireless network. When the emergency power supply is used for mains power failure, the charged power supply or dry battery is used. Backup wireless network, design wireless transceiver system in complex mountainous areas without GPS/GPRS network coverage, use wireless relay or wireless broadcast transmission to transmit alarm signals to ensure the reliability of system operation. In addition, when the use environment is better, the relay wireless transmission method and the broadcast wireless transmission method can be used at the same time.

Preferably, this system takes the main processor QT6410 as the control core, combines GPS positioning and GPRS wireless transmission module, and processes the signals transmitted by the human body infrared detection module and the gravity sensor module from the processor single-chip microcomputer, and achieves the purpose of automatic alarm of the hydropower station.

A hydropower station alarm method, comprising the following steps:

Step 1: After the system initialization is completed, the system continues to detect, waiting for signal input;

Step 2: After the system receives the signal, it first judges whether the signal is valid, if the signal is valid, then judges the signal type, and performs different processing according to the signal type;

Step 3: When the water discharge signal is detected, the main processor starts a high-power player to play the pre-set voice prompt of "Flood is coming, danger", the main processor sends an instruction to call GPS positioning information, and the wireless network transmits the data in real time It will be sent to the next-level hydropower station in a timely manner to inform them which hydropower station will release water so as to make corresponding preparations; after the human body infrared detects that someone has entered the dangerous area of the gate, the main processor will start a high-power player to play a voice warning to let tourists evacuate from the dangerous area; After the sensor detects that the device loses the signal, it is judged as an anti-theft alarm signal, and corresponding fast anti-theft processing is performed.

Step 4: The system should consider that in special cases, the battery power supply can be used to deal with power outages. The system should solve the problem of wireless transmission in complex mountainous areas where wireless signals cannot be covered.

After the system initialization is completed, the system continuously detects and waits for signal input. When the system receives the signal, it first judges whether the signal is valid. One is to determine any trigger signal formed by the trip switch trigger circuit installed on the side of the gate and the trigger circuit of the control gate lifting motor button as a signal for lifting the gate of the hydropower station to release water, and the main processor issues an instruction to start a high-power player locally to play "Flood Here comes the pre-set voice prompt to remind tourists playing near the hydropower station to evacuate as soon as possible. Separation of the data, convert it into data that can be sent by wireless network, and then send the data to the next-level hydropower station in real time through the wireless network, and inform them which hydropower station will release water so that they can make corresponding preparations; the second is: the human body infrared detects the dangerous area of the gate After someone enters, the main processor starts a high-power player to play a voice warning to let visitors evacuate from the dangerous area. The third is: after the gravity sensor as an auxiliary monitoring function detects that the device loses the signal, it is judged as an anti-theft alarm signal, and the system calls the GPS positioning information reading function to separate the read data and convert it into data that can be sent by the wireless network, and then Send the data to the management center of the hydropower station or the public security organ to call the police through the wireless network, so that they can know the accurate information of the incident and do corresponding fast anti-theft processing.

Beneficial effects of the present invention:

(1) The automatic alarm system of the hydropower station solves the problem of timely and effectively notifying the tourists in the downstream river of the hydropower station when the staff of the hydropower station carry out routine maintenance on the hydropower station, and randomly lifts (lifts) the gate to release water, so that they can be alerted when the flood comes. Before that, they can leave quickly to avoid tragedy.

(2) The automatic alarm system of the hydropower station solves the problem of sending data to the management center of the hydropower station or the public security agency through the wireless network to alarm when equipment is lost in the hydropower station, so that they can know the accurate information of the incident and do corresponding fast anti-theft processing. In this way, the safety of important equipment for the normal operation of the hydropower station can be monitored in real time.

Description of drawings

Fig. 1 is the schematic diagram of the alarm system of the hydropower station;

Fig. 2 is a flow chart of the hydropower station alarm method;

Fig. 3 is the flow chart of serial port receiving GPS signal;

Fig. 4 is the program block diagram of GPS data separation;

Fig. 5 short message sending program flow chart;

Figure 6 ADC0832 data reading program flow chart.

detailed description

The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

A hydropower station alarm system includes a main processor, a slave processor, a GPS module, a GPRS module, a human body infrared detection module, a gravity sensor module, a voice output module and an emergency treatment module. As shown in Figure 1.

The hydropower station alarm system runs under the QT/Linux system. The method flow chart of the system is shown in Figure 2. The main function is that after the system initialization is completed, the system continuously detects and waits for a signal input. When the system receives the signal , first judge whether the signal is valid, if the signal is valid, then judge the signal type, and realize three kinds of functional processing according to the different signal types. One is to determine any trigger signal formed by the trip switch trigger circuit installed on the side of the gate and the trigger circuit of the control gate lifting motor button as a signal for lifting the gate of the hydropower station to release water, and the main processor issues an instruction to start a high-power player locally to play "Flood Here comes the pre-set voice prompt to remind tourists playing near the hydropower station to evacuate as soon as possible. Separation of the data, convert it into data that can be sent by wireless network, and then send the data to the next-level hydropower station in real time through the wireless network, and inform them which hydropower station will release water so that they can make corresponding preparations; the second is: the human body infrared detects the dangerous area of the gate After someone enters, the main processor starts a high-power player to play a voice warning to let visitors evacuate from the dangerous area. The third is: after the gravity sensor as an auxiliary monitoring function detects that the device loses the signal, it is judged as an anti-theft alarm signal, and the system calls the GPS positioning information reading function to separate the read data and convert it into data that can be sent by the wireless network, and then Send the data to the management center of the hydropower station or the public security organ to call the police through the wireless network, so that they can know the accurate information of the incident and do corresponding fast anti-theft processing.

The system includes a hardware implementation method and a software implementation method.

The hardware implementation method includes a main processor, a slave processor, a GPS module, a GPRS module, a human body infrared detection module, a gravity sensor module, a voice output module and an emergency treatment module.

The main processor MCU needs to select QT6410 provided by Tianxie Technology according to the actual performance of the alarm system. This processor is based on the ARM1176JZF-S of the CPU subsystem and has a JAVA acceleration engine and 16KB/16KBI/D cache and 16KB/ 16KBI/DTCM. 400/533/667MHz operating frequency on TBDV and TBDV respectively. An 8-bit ITU601/656 camera interface, up to 4M pixels for scaling, 16M pixels for fixed. Multi-standard codec provides MPEG-4/H.263/H.264 encoding and decoding up to 30 frames/s, VC1 video decoding up to 30 frames/s.

The slave processor uses AT89C52 single-chip microcomputer. After the human body infrared detects that someone has entered the dangerous area of the gate, the signal is first transmitted to the single-chip microcomputer for processing, and then processed by the main processor. The main processor starts a high-power player to play a voice warning to let visitors Evacuate the danger area. After the gravity sensor detects that the device loses the signal, the signal is first processed by the single-chip microcomputer AT89C52, and then processed by the main processor, and it is judged as an anti-theft alarm signal. The system calls the GPS positioning information reading function and separates the read data and converts it into a wireless network. GPRS can send the data, and then send the data to the hydropower station management center or the public security agency to call the police through the wireless network, so that they can know the accurate information of the incident and do corresponding fast anti-theft processing.

The GPS module, according to system performance requirements and design convenience, selects the GPS module M-87 developed by Taiwan HOLUX Company. M-87 is a product with high sensitivity, fast position correction, low power consumption, and small drift with high cost performance. The connection between M-87 and the main chip is 1.25-6A interface, and the UART3 port of s3c6410 chip is used. In this system, the main processor issues an instruction to call the GPS positioning information reading function, reads the longitude and latitude information of the water discharge hydropower station and separates the read data, converts the data that can be sent by the wireless network GPRS, and then transmits the data in real time through the wireless network. Sent to the next level hydropower station.

Described GPRS module, GPRS module realizes the voice short message alarm signal in the design, and in the design GPRS module is directly connected with main processor QT6410 by serial port, has provided reliability for system design, has saved cost. Choose the wireless GPRS module designed by Baihui Company, which is an efficient and convenient wireless communication module specially provided for freelance designers. No matter when and where, you can freely move the Internet, make calls, and send and receive text messages through laptop computers and other methods. The GPRS module is connected with the main chip using the PH-6A interface and the UART1 port of the s3c6410 chip. After the main processor obtains the latitude and longitude information, it converts it into data that can be sent by the GPRS module, and then sends the data to the next-level hydropower station in real time through the wireless network, and informs them which hydropower station will release water for corresponding preparations.

The human body infrared detection module, in the design of this system, in order to realize that when idlers enter the dangerous area of the hydropower station without permission, the system can detect the entry of people in a timely and effective manner, so the human body infrared temperature detection module is adopted. technology. The DYP-ME003 human body induction module designed by Shenzhen Dianyingpu Technology Co., Ltd. is an automatic control product based on infrared technology. It has the advantages of high sensitivity, high reliability, ultra-low voltage working mode, and can also be powered by dry batteries. . When the detection module detects the output, the output voltage is high level, while the microcontroller AT89C52 can only detect the input low level when detecting the external input signal, so the integrated chip HD74LSOOP of the NAND gate is used to do a level conversion when designing the circuit.

The gravity sensor module, in this system design, in order to prevent the loss of important equipment of the hydropower station, uses the gravity sensor as the trigger detector for the loss of important equipment. Since the output of the gravity sensor is an analog signal, and the output is a very weak millivolt level signal, the analog amplifier OP27G is used to amplify the first-level signal during design, and then input to the analog-to-digital converter ADC0832 for digital-to-analog conversion, so that the microcontroller can The signal detected by the gravity sensor is obtained. In this system design, a resistance strain pressure sensor is used, which is composed of an elastic body, a resistance strain gauge, and a cable, and the internal circuit adopts a Huygens bridge. When the elastic body is deformed under pressure, the resistance strain The resistance value of the chip (conversion element) will change (increase or decrease), so that the bridge will be out of balance, and a corresponding differential electrical signal will be generated for subsequent circuit amplification and processing. The analog amplifier OP27G is a high-precision, low-noise, high-speed amplification, which can be amplified more than 1000 times in one stage and is a cost-effective high-performance amplifier, and the output stage has good load driving capability. The analog-to-digital converter ADC0832 is an 8-bit resolution, dual-channel analog-to-digital converter produced by National Semiconductor Corporation of the United States. Its working principle is to realize the mode conversion by successive approximation; because of its small size, strong compatibility and high cost performance .

Described speech output module, in this system design, in order to realize under the situation that the infrared detection module and the gravity sensor module monitor and output the alarm signal, the system can automatically and timely and effectively voice remind the function of entering the dangerous area and the thieves, this system selects The product WT588D is used as a voice output module. The WT588D voice chip can be set with two function control methods to realize functions such as voice playback, voice stop, loop playback, volume adjustment, and next song playback settings. One is the button control method, which is flexible in triggering. You can set a button arbitrarily to realize pulse cycle trigger setting, pulse non-cycle trigger setting, invalid button setting, level continuous cycle, level continuous non-cycle, level non-continuous The trigger mode can be controlled by looping. The second is one-line serial port software control or three-line serial port software control mode. In this way, the main controller can send instructions through pre-edited programs to realize control functions such as play, stop, and volume adjustment. And in this system, according to the actual needs, select the one-line serial port connection mode to connect with the single-chip microcomputer AT89C52. At the output end of the voice signal, a speaker needs to be connected to the chip. According to the recommendation of the chip manufacturer, the parameter impedance of the speaker is 0.8Ω, and the power is 0.5W.

The emergency treatment module includes an emergency power supply and a backup wireless network. When the emergency power supply is used for mains power failure, the charged power supply or dry battery is used. Backup wireless network, design wireless transceiver system in complex mountainous areas without GPS/GPRS network coverage, use wireless relay or wireless broadcast transmission to transmit alarm signals to ensure the reliability of system operation. In addition, when the use environment is better, the relay wireless transmission method and the broadcast wireless transmission method can be used at the same time.

The software implementation method mainly includes serial port communication under the QT/Linux system, reading and separation of GPS positioning information, realization of the SMS function of the GPRS module, software design of the detection module, and design of the man-machine interface.

The serial port communication under the described QT/Linux system realizes the serial port communication under the QT/linux system, at first the basic information of the serial port will be opened to include the baud rate setting, the parity bit and the stop bit setting etc. of the serial port setting. The setting of the serial port is mainly to set the value of each member variable of the termios structure. When realizing the setting parameter selection of the man-machine interface, use the switch() case statement to realize it. After configuring the relevant properties of the serial port, you can use the open and read/write functions of the system package to operate the serial port. Its use method is the same as file operation, the difference is that the serial port is just a terminal device. Serial communication program flow chart shown in Figure 3 .

For the reading and separation of the GPS positioning information, the GPS module communicates with the TQ6410 development board through the serial port, and the GPS module sends a NMEA-0183 standard sentence to the serial port every second. After the system is initialized, when the main processor receives the alarm signal from the detection module, the system will automatically call the preset GPS reading function to read the GPS positioning information. When the serial port receives the GPS data, it will be placed in the serial port buffer. Note that before the data is placed in the buffer, a timer is started, and the set scanning interval should be smaller than the interval sent by the GPS receiver. When reading buffer data each time, turn off the timer before the system shuts down, and restart the timer after reading the data. The separation of GPS positioning signals is based on the standard sentence format sent by the GPS module. Since there are many signal sentence formats, only $GPGGA is used in this system. Each statement starts with an identifier, and there are parity bits after the statement, separated by "*", and each statement ends with <CR>, <LF>. Therefore, only use The switch()...case()... statement or the if() statement can accurately distinguish the longitude, latitude, altitude, speed and other information and apply them to the designed user interface display. The key codes are as follows. The program flow chart shown in Figure 4 .

The realization of the short message function of the GPRS module, in order to realize the long-distance alarm or signal transmission function of the voice short message, is realized by the special GPRS module. Because the wireless GPRS module provided by Parkway Company is selected, it is only necessary for the software to send AT commands through the serial port during programming. In the function design of the GPRS module, many functions are realized by sending AT commands, such as: sending and receiving short messages, dialing and hanging up the phone, wireless Internet access, and setting of the phone book. It is relatively simple to use AT command to realize voice call, just send corresponding command to GPRS module through serial port debugging tool or super terminal, the format is: dial phone command format: ATD + the phone number to be dialed, for example: ATD13648811690. And when hanging up the phone, it can be realized by only sending the command ATH. TEXT mode can be used when using AT commands to send text messages. First set the SMS sending format 1 as TEXT mode: AT+CMGF＝1, return: OK, set the SMS service center: AT+CSCA＝”+8613800000500, return: OK, send: AT+CMGS＝13648811690, set to receive SMS Mobile phone number. Send short message content after receiving [>] response. Short message sending program flowchart as shown in Figure 5. To received short message, usually use event mode, set the received short message by sending instruction AT+CNMI The message is stored in the SIM card and a prompt message is returned.

The software design of the detection module includes the software design of the human body infrared detection EYP-ME003 and the software design of the gravity sensing module. Since the human body infrared detection module EYP-ME003 used is a semi-finished product, after it is powered on, when it detects that a person enters the detection area, it will directly output a 5V high-level digital pulse, as long as it is converted into an external input that can be recognized by the microcontroller Low level is enough. Therefore, when designing this program, it is only necessary to detect whether the access pin is low in the while () statement function. In the software design of the gravity module, the main difficulty is the use of ADC0832 and how to convert the read signal into weight. According to the working timing diagram of ADC0832, its working process can be obtained, and the flow chart of ADC0832 data reading program is shown in Figure 6.

The design of the human-computer interaction interface, the interface design method of the interface design software QT4.5 of this system is very similar to the MFC used by most developers. In MFC, the realization of the components of the interface such as group boxes, buttons, text boxes and other element functions is done through class wizards, while in QT the realization principle is basically the same, except that signals are used when elements and functions are associated. and slots to achieve. First open the main interface design window of QT4.5 and create a new project, create a new button in the newly created project, and set its parameters, click the SLOTS button in the edit menu to open the signal and slot design menu, and finally connect the signal and slot. According to this step, the interface design and function design can be connected together to realize the interface design of the system, and finally the map positioning effect diagram is designed and completed.

The above is only a preferred specific embodiment of the present invention, and the scope of protection of the present invention is not limited thereto. Any person familiar with the technical field within the technical scope disclosed in the present invention can obviously obtain the simplicity of the technical solution. Changes or equivalent replacements all fall within the protection scope of the present invention.

Claims (2)

1. a kind of power station warning system, it is characterised in that：Including primary processor, from processor, GPS modules, GPRS modules, Human body infrared detection module, gravity sensor module, voice output module, emergency processing module；

The primary processor MCU, the QT6410 for needing to provide from the embedding science and technology in day according to the actual performance of warning system, this processing Device is the ARM1176JZF-S of the subsystem based on CPU, with JAVA accelerating engines and 16KB/16KBI/D cachings and 16KB/ 16KBI/DTCM；In respectively TBDV and TBDV 400/533/667MHz operating frequencies；One 8 ITU601/656 camera connects Mouthful, up to 4M pixels, fixed 16M pixels for scaling；The MPEG-4/H.263/H.264 that multi-standard codec is provided Up to 30 frames/s of coding and decoding, VC1 videos decode, reach 30 frames/s；

It is described from processor, from AT89C52 single-chip microcomputers, human body infrared detect sluice gate danger zone someone enter after, this letter The incoming single-chip microcomputer processing of number elder generation, then through master processor processes, primary processor starts high-power player plays voice warning, allows trip People withdraws danger zone；Gravity sensor is detected after device losses signal, and this signal is first handled through single-chip computer AT89C52, then Through master processor processes, it is determined as burglar alarm signal, system calls GPS location informations function reading and by the data of reading Separation, is converted to the data of wireless network GPRS transmissions, then sends the data to power station administrative center by wireless network Or public security organ's alarm, them is known the accurate information of spot, do corresponding quick antitheft processing；

The GPS module, the GPS module M- that from Taiwan HOLUX company is developed convenient according to system performance requirements and design 87；M-87 is connected with master chip uses 1.25-6A interfaces, uses the UART3 mouths of s3c6410 chips；In the system, Primary processor sends instruction calls GPS location information function readings, reads the latitude and longitude information in the power station that discharges water and by reading Data separating, is converted to the data of wireless network GPRS transmissions, is then sent to data in real time by wireless network next Level power station；

The GPRS module, GPRS module come realize design in voice SMS alarm signal, in the design GPRS module pass through string Mouth is joined directly together with primary processor QT6410, and GPRS module is connected with master chip uses PH-6A interfaces, uses The UART1 mouths of s3c6410 chips；Primary processor is obtained after latitude and longitude information, is converted to the data of GPRS module transmission, Ran Houtong Cross wireless network and data are sent to next stage power station in real time, notify their which hydropower station discharge to do corresponding standard Standby work；

The human body infrared detection module, in the system design, to realize in the case where being not allowed to, people without fixed duties enters water During the danger zone of power station, system can timely and effectively detect the entrance of people, so employing human body infrared temperature detection technology； General Science and Technology Ltd.'s design DYP-ME003 human body induction modules are answered from Shenzhen civil power, the module is to be based on infrared technology The a of design automatically controls product, and the output voltage during detection output of this detection module is high level, and single-chip computer AT89C52 Detection external input signal when be only able to detect input low level, so design circuit when using NAND gate integrated chip HD74LSOOP does a level conversion；

The gravity sensor module, in the system design, to prevent the loss of power station visual plant, using gravity sensitive Device loses trigger detector as visual plant；What it is due to gravity sensor output is analog signal, and is exported very faint Millivolt level signal, so doing one stage signal amplification using analogue amplifier OP27G in design, is then input to analog-to-digital conversion Digital-to-analogue conversion is done in device ADC0832, such single-chip microcomputer can just get the signal that gravity sensor is detected；Set in the system In meter, using resistance strain type pressure sensor, it is made up of elastomer and resistance strain gage, cable, and internal wiring Using Huygens's electric bridge, when elastomer bears pressure and deformed, the resistance of resistance strain gage will change, so that Electric bridge disequilibrium, produces corresponding differential electrical signals, amplifies for subsequent conditioning circuit and handles；

The voice output module, in the system design, to realize in infrared detection module, fingerprint identification module and gravity sensor module monitors In the case of output alarm signal, system can timely and effectively voice reminder enters the work(of danger zone and thief automatically Can, the system selection product WT588D is used as voice output module；In the present system, a line serial ports is selected according to actual needs Connected mode is connected with single-chip computer AT89C52；In the output end of voice signal, in addition it is also necessary to connect a loudspeaker and chip phase Even, loudspeaker selects its parameter impedance to be 0.8 Ω according to the recommendation of chip business, and power is 0.5W；

The emergency processing module, including emergency power supply and alternate wireless network；When emergency power supply is used for mains failure, using Charge power supply or dry cell through substituting the bad for the good；Alternate wireless network, in the uncovered Complex Mountain area design of GPS/GPRS networks Wireless transceiver system, by the way of wireless relay or radio transmission mode, transmits alarm signal.

2. a kind of power station alarm method, it is characterised in that：Comprise the following steps：After the completion of system initialization, system is continuous Whether detection, wait has signal input, after system receives signal, first determines whether whether signal is effective, if signal is effective Signal type is judged again, and three kinds of function treatments are realized according to the difference of signal type；One is to open the stroke loaded on gate side Close triggers circuit and regulating gate lifting motor button triggers circuit forms any trigger signal, be determined as that power station carries lock and put Water signal, primary processor sends instruction being previously set in the high-power player plays of local boot " flood comes, dangerous " Voice message, remind the visitor that plays near power station to withdraw as early as possible, at the same time, primary processor, which sends instruction calls GPS, to be determined Position information function reading, reads the latitude and longitude information in the power station that discharges water and by the data separating of reading, is converted to wireless network hair Data, are then sent to next stage power station by the data sent in real time by wireless network, notify their which power station to put Water is to do corresponding preparation；Two are：Human body infrared is detected after sluice gate danger zone someone entrance, and primary processor starts High-power player plays voice warning, allows visitor to withdraw danger zone；Three are：It is used as the gravity sensor of auxiliary monitoring function Detect after device losses signal, be then determined as burglar alarm signal, system is called GPS location information function reading and will read Data separating, be converted to wireless network transmission data, then sent the data to by wireless network in water power station administration The heart or public security organ's alarm, make them know the accurate information of spot, do corresponding quick antitheft processing；

The first step：After the completion of system initialization, system is constantly detected, whether wait has signal input；

Second step：System is received after signal, first determines whether whether signal is effective, if signal effectively judges signal type again, Different processing are done according to signal type；

3rd step：Detect when discharging water signal, primary processor starts the prior of high-power player plays " flood comes, dangerous " The voice message set, primary processor sends instruction calls GPS location informations, and data are sent to by wireless network in real time Next stage power station, notifies their which hydropower station discharge to do corresponding preparation；Human body infrared detects sluice gate danger After danger zone domain someone enters, primary processor starts high-power player plays voice warning, allows visitor to withdraw danger zone；Gravity Sensor is detected after device losses signal, then is determined as burglar alarm signal, does corresponding quick antitheft processing；

4th step：System is contemplated that in mains failure and GPS/GPRS networks are when Complex Mountain area is without covering, battery Power supply is to handle powering-off state, and being wirelessly transferred for Complex Mountain area that system should solve wireless signal and can not cover is asked Topic.