CN110411644A - A pipeline pressure intelligent detection system - Google Patents

Abstract

The invention provides a pipeline pressure intelligent detection system, which is based on STM32 series single-chip microcomputers, including multi-point distributed pipeline pressure collection and detection devices and hand-held pressure receiving analyzers, and multiple pipeline pressure collection and detection devices are distributed according to requirements and actual conditions It is fixedly installed in the blocked position of the pipeline to realize the detection, collection, storage, positioning, display and communication of distributed multi-point pipeline pressure information; the hand-held pressure receiving analyzer is used to inspect the pressure collection and detection devices of each pipeline, and through wireless communication Realize the control of the pipeline pressure acquisition and detection device, further comprehensively use the keyboard setting module and the graphical operation interface of the resistance screen, and can perform fixed time period data review and graphical curve for the pipeline pressure data saved in the handheld pressure receiving analyzer Display, line pressure threshold comparison and line pressure trend analysis.

Description

A pipeline pressure intelligent detection system

technical field

The invention relates to an intelligent pipeline pressure detection system, which belongs to the technical field of pressure detection.

Background technique

Pressure pipelines are generally used to transport various industrial media such as crude oil, refined oil, natural gas, coal gas, and steam. The pressure pipeline has an extremely important strategic position in the national economic construction, and is called a major lifeline of the country. The pressure pipeline transmits the pressure of the industrial medium to complete the work content. Therefore, the pressure is an important parameter to consider whether the system works normally. Existing pressure detection devices generally only detect a single pressure data at a fixed location, which makes it inconvenient to view and browse the data. At the same time, it is impossible to collect, view and analyze pressure data for pressure detection devices distributed at multiple points.

Contents of the invention

The purpose of the present invention is to provide a pipeline pressure intelligent detection system, which can realize real-time detection, storage and transmission of multi-point pipeline pressure information, as well as fixed time period pipeline pressure data review, graphical curve display, pipeline pressure threshold comparison and pipeline pressure Trend analysis to achieve the purpose of intelligent detection of pipeline pressure.

To achieve the above object, the technical solution adopted in the present invention is:

A pipeline pressure intelligent detection system is composed of a multi-point distributed pipeline pressure acquisition and detection device and a hand-held pressure receiving analyzer; the multi-point distributed pipeline pressure acquisition and detection device includes several pipeline pressure acquisition devices installed in different positions detection device, the pipeline pressure acquisition and detection device is used to detect the pipeline pressure at the location and realize the storage and transmission of pressure data; Data collection, data display and anomaly detection;

The pipeline pressure acquisition and detection device comprises a pipeline pressure detection module, a first main controller, a first power supply module, a clock module, an A/D conversion module, a first display module, a first storage module, a first communication module and a first Positioning module implementation;

The handheld pressure receiving analyzer is realized through a second main controller, a second power supply module, a second communication module, a second positioning module, a second storage module, a second display module, a keyboard setting module and an alarm module.

Further, the pipeline pressure detection module uses a CPS181 ceramic pressure sensor installed on the inner wall of the pipeline, and the pipeline pressure detection module is used to detect the pipeline pressure at the location and convert the pipeline pressure into a millivolt level voltage signal;

The first main controller adopts STM32 series single-chip microcomputer; the first main controller controls the clock module to record time stamps for various operations, receives the pipeline pressure data converted by the A/D conversion module, and controls the first display module to display The received pipeline pressure data is stored in the first storage module at the same time; the first main controller controls the first communication module to transmit the pipeline pressure data to the handheld pressure receiving analyzer; the The first main controller receives the position information of the pipeline pressure detection device collected by the first positioning module;

The first power module adopts a 12V rechargeable lithium battery to supply power for the CPS181 ceramic pressure sensor;

The clock module adopts an external real-time clock, which is used to provide time information for the main controller and record various operation time stamps;

The A/D conversion module adopts the AD620 chip, which is used to convert the millivolt level voltage output by the pipeline pressure detection module into a standard 0-5V voltage, and adopts the AD7799 conversion chip to convert the voltage signal into a 24-bit digital signal; The A/D conversion module transmits the converted pipeline pressure data to the first master controller through the SPI interface;

The first display module adopts LED common-cathode digital tubes and is connected with the first main controller for displaying the pipeline pressure data converted by the A/D conversion module;

The first storage module adopts W25Q64FLASH chip, and adopts SPI serial communication with the first main controller, and is used for storing the pipeline pressure data converted by the A/D conversion module;

The first communication module adopts the ESP8266WIFI wireless module, and is connected with the first main controller in a serial port mode, and is used to transmit the pipeline pressure data to the handheld pressure receiving analyzer;

The first positioning module adopts an Air868 chip and is connected with the first main controller to provide position information of the pipeline pressure acquisition and detection device.

Further, the first power module adopts RT272A chip to convert 12V voltage to 5V voltage, and supplies power for A/D conversion module, first display module, first communication module and first positioning module; adopts ASM1117 chip to convert 5V voltage The voltage is 3.3V, which supplies power for the first main controller, the first storage module and the clock module.

Further, the A/D conversion module is configured with three ceramic pressure sensors.

Further, the second main controller adopts STM32 series single-chip microcomputer; the second main controller receives the pipeline pressure data sent by each pipeline pressure acquisition and detection device through the second communication module, and stores it in the second storage module; The second main controller receives the position information of the staff collected by the second positioning module; the second main controller also controls the second display module to display the pipeline pressure data stored in the second storage module and the result analysis of the pipeline pressure data And realize human-computer interaction through the second display module; the second main controller controls the alarm module to give an alarm when the pipeline pressure value checked exceeds the preset threshold value;

The second power supply module is composed of a 5V rechargeable lithium battery and an ASM1117, based on a 5V rechargeable lithium battery, supplies power for the second display module, the second communication module, the second storage module, the alarm module and the second positioning module, and the ASM1117 will 5V voltage is converted to 3.3V voltage to supply power for the second main controller;

The second communication module adopts the ESP8266WIFI wireless module, which is used to receive the pipeline pressure data sent by the pipeline pressure acquisition and detection device, and transmit it to the second main controller through the serial port;

The second positioning module adopts the Air868 chip, which is connected with the second main controller, and is used to provide the position information of the staff of the handheld pressure receiving analyzer;

The second storage module adopts an SD card, has an SDIO interface, and is connected with the second main controller for storing pipeline pressure data and operation records transmitted by each pipeline pressure acquisition and detection device;

The second display module adopts a resistive liquid crystal screen and is connected with the second main controller to realize a graphical operation interface, display of pipeline pressure data in the second storage module, analysis of pipeline pressure data results and human-computer interaction;

The keyboard setting module is composed of three independent buttons and a 4×4 membrane keyboard, and the three independent buttons respectively realize the power-on, shutdown and confirmation functions, and the 4×4 membrane keyboard provides ten number buttons from 0 to 9 and a decimal point button , a return button and four direction buttons up, down, left and right;

The alarm module adopts a buzzer and is connected with the second main controller, and is used for alarming when the checked pipeline pressure value exceeds a preset threshold.

Further, the pipeline pressure collection and detection device and the hand-held pressure reception analyzer also include a work indication module; the work indication module uses a plurality of LED lights to identify the pipeline pressure collection and detection device or the hand-held pressure reception analyzer. status.

Further, the workflow of the pipeline pressure acquisition and detection device includes:

Initial configuration is performed after the pipeline pressure acquisition and detection device is turned on;

Pipeline pressure data is collected once every second, and after five collections, data averaging processing is performed, and the digitally converted pipeline pressure data together with time information and position information are stored in the first storage module; at the same time, through the first display module Pipeline pressure data display;

After the acquisition process is over, the pipeline pressure acquisition and detection device enters a dormant state;

When the next acquisition process arrives, the pipeline pressure acquisition and detection device automatically exits the dormancy process and performs data acquisition again.

Further, the workflow of the handheld pressure receiving analyzer includes:

Perform initial configuration after the hand-held pressure receiving analyzer is turned on;

Operate the hand-held pressure receiving analyzer through the keyboard setting module and the graphical operation interface of the second display module, so that it can be wirelessly connected with the pipeline pressure acquisition and detection device;

When the wireless communication is connected, the hand-held pressure receiving analyzer sends control commands to the pipeline pressure acquisition and detection device;

After the pipeline pressure acquisition and detection device receives the pipeline pressure data acquisition command, it sends the stored pipeline pressure data to the handheld pressure receiving analyzer;

After the hand-held pressure receiving analyzer finishes receiving, save the pipeline pressure data to its own SD card.

Further, the control command includes setting the working state of the pipeline pressure collection and detection device, including sampling process time, dormancy process time and pipeline pressure collection and detection device serial number; it also includes obtaining pipeline pressure data from the pipeline pressure collection and detection device.

Further, the handheld pressure receiving analyzer uses a keyboard setting module and a second display module to review pipeline pressure data for a fixed period of time, display graphical curves, compare pipeline pressure thresholds, and analyze pipeline pressure trends.

The beneficial effects of the present invention are:

The invention can carry out distributed detection for multi-point pressure of pipelines, and carry out centralized collection, viewing and analysis of distributed pressure data in combination with a hand-held pressure receiving analyzer. By adopting the system of the present invention, the running state of the pipeline system can be accurately grasped, the potential failure risk of the pipeline system can be predicted in advance, and the safe operation of the pipeline system can be ensured.

Description of drawings

Fig. 1 is the schematic structural diagram of pipeline pressure intelligent detection system of the present invention;

Fig. 2 is a flow chart of the pipeline pressure acquisition and detection device of the present invention;

Fig. 3 is a working flow diagram of the hand-held receiving analyzer of the present invention.

Detailed ways

The present invention will be further described below. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

As shown in Figure 1, the present invention provides a pipeline pressure intelligent detection system, which is based on the STM32 series single-chip microcomputer, and consists of a multi-point distributed pipeline pressure acquisition and detection device and a hand-held pressure receiving analyzer. The pressure information at each point of the pipeline is effectively stored; the handheld pressure receiving analyzer is used to collect data from multiple pipeline pressure acquisition and detection devices distributed in different locations, and further perform data viewing, abnormal detection and data analysis;

The multi-point distributed pipeline pressure collection and detection device is to install a plurality of pipeline pressure collection and detection devices in different positions of the pipeline according to specific needs and actual conditions; the pipeline pressure collection and detection device completes accurate pressure detection, collection, positioning, and storage , display and transmission functions, which include pipeline pressure detection module, first main controller, first power supply module, clock module, A/D conversion module, first display module, first storage module, first communication module, second a positioning module and a first work instruction module;

The pipeline pressure detection module adopts CPS181 ceramic pressure sensor, which has strong environmental adaptability, can be in contact with most media, can be distributed on the inner wall of the pipeline at multiple points, can sensitively detect the internal pressure of the pipeline, and convert the pipeline pressure into millivolts voltage signal.

The first main controller adopts STM32 series single-chip microcomputer, coordinates and controls the pressure detection module, the A/D conversion module, the first display module, the first storage module, the first communication module, the first positioning module and the first work instruction module, It is the core of coordinated control of other modules. The first main controller controls the clock module to record time stamps for various operations, receives the pipeline pressure collection data converted by the A/D conversion module, and controls the first display module to display the received pipeline pressure collection data, and displays the received pipeline pressure collection data The received pipeline pressure collection data is stored in the first storage module, and at the same time, the first communication module is controlled to transmit the pipeline pressure collection data to the handheld pressure receiving analyzer; the first main controller receives the pipeline pressure detection device collected by the first positioning module According to the location information, the first main controller also controls the LED lights in the first work indication module to turn on and off according to the working state of the pipeline pressure acquisition and detection device.

The first power module is powered by a 12V rechargeable lithium battery. If the lithium battery is exhausted, it can be charged independently and quickly to improve the repeatability of use; the first power module is based on 12V voltage and supplies power for the CPS181 ceramic pressure sensor , use RT272A chip to convert 12V voltage to 5V voltage, supply power for A/D conversion module, first display module, first work instruction module, first communication module and first positioning module, use ASM1117 chip to convert 5V voltage to 3.3 The V voltage supplies power for the STM32 system microcontroller, the first storage module and the clock module, and can automatically adjust the required voltage by adjusting the resistance according to the specific requirements of other modules.

The clock module adopts an external real-time clock to provide time information for the main controller and complete the recording of various operation time stamps.

The A/D conversion module uses the AD620 chip to convert the millivolt level voltage output by the ceramic pressure sensor into a standard 0-5V voltage, and the voltage magnification and voltage range can be set by adjusting the resistance; and then the high-performance 24-bit AD7799 conversion is selected The chip converts the voltage signal into a 24-bit digital signal, and uses the SPI interface to transmit the pipeline pressure acquisition data to the first main controller. The A/D conversion module has 3 differential input channels, which can be connected to 3 ceramic pressure sensor signals, that is, a single pipeline pressure acquisition and detection device can be configured with 3 ceramic pressure sensors.

The first display module adopts LED common-cathode digital tubes, which are directly driven by 74HC164D chips, connected to the first main controller, and display the real pressure value inside the pipeline concisely and intuitively.

The first storage module adopts W25Q64FLASH chip to store the real value of the pipeline pressure after AD conversion, and uses SPI serial communication with the first main controller to effectively improve the speed of pipeline pressure value, preset threshold value storage and controller data transmission.

The first communication module is realized by ESP8266WIFI wireless module, which integrates power management conversion and wireless switch functions, and reduces the complexity of external circuits. The module and the first main controller adopt a serial port connection mode; The pipeline pressure data stored in the device is transmitted to the ESP8266WIFI wireless module through the serial port, and then converted into a wireless signal to realize data communication with the handheld pressure receiving analyzer.

The first positioning module adopts the Air868 chip, is connected with the first main controller, has the function of GPRS+GPS+BEIDOU hybrid navigation and positioning, provides the position information of the pipeline pressure detection device, and can use GPRS for data communication at the same time, so as to provide the follow-up pipeline The pressure data is uploaded to the cloud to provide the foundation.

The first working indication module adopts a plurality of LED lights, and uses the first main controller to control the LED lights to turn on and off. The green light indicates normal operation, the red light flickers indicates that the pipeline pressure acquisition and detection device is faulty, and the blue light flickers indicates the transmission data.

The handheld pressure receiving analyzer realizes the collection of data information from pipeline pressure acquisition and detection devices distributed in different locations, and performs data viewing, abnormal detection and data analysis; the handheld pressure receiving analyzer includes a second main controller , a second power supply module, a second communication module, a second positioning module, a second storage module, a second display module, a keyboard setting module, an alarm module and a second work indication module;

The handheld pressure receiving analyzer adopts STM32 series single-chip microcomputer as the second main controller, coordinates and controls the second power supply module, the second communication module, the second positioning module, the second storage module, the second display module, the keyboard setting module, The alarm module and the second work instruction module are the cores of coordinated control of other modules.

The second main controller receives the pressure acquisition data sent by each pipeline pressure acquisition and detection device through the second communication module, and stores it in the second storage module; the second main controller receives the work collected by the second positioning module The location information of personnel; the second main controller also controls the second display module to display the pipeline pressure data stored in the second storage module, analyze the result of pipeline pressure data, and realize human-computer interaction through the second display module. The second master controller controls the alarm module to issue an alarm when the checked pipeline pressure value exceeds a preset threshold. The second main controller also controls the LED lights in the second work indicating module to turn on and off according to the working state of the handheld pressure receiving analyzer.

The second power supply module is composed of a 5V rechargeable lithium battery and ASM1117, based on the 5V rechargeable lithium battery as the second display module, the second work instruction module, the second communication module, the second storage module, the alarm module and the second positioning module. The module is powered by ASM1117 to convert the 5V voltage to 3.3V voltage to supply power for the STM32 series single-chip microcomputer, and the required voltage can be automatically adjusted according to the requirements of other modules.

The second communication module is realized by ESP8266WIFI wireless module, which receives the pressure data wireless signal sent by the pipeline pressure acquisition and detection device, and transmits it to the main controller through the serial port.

The second positioning module adopts Air868 chip, is connected with the second main controller, and has GPRS+GPS+BEIDOU mixed navigation and positioning function. Since this module constitutes a hand-held pressure receiving analyzer, the positioning information of this module is to use The location information of personnel can locate the staff in real time and provide security. At the same time, GPRS can be used for data communication, which provides the basis for subsequent download of pipeline pressure data from the cloud.

The second storage module has an SDIO interface, uses an SD card to store data, and is connected to the second main controller. The second master controller controls the second communication module, and transmits the acquired pipeline pressure data sent by each pipeline pressure acquisition and detection device to the second storage module, and the second storage module quickly stores the pipeline pressure data and data transmitted by each pipeline pressure acquisition and detection device. Operation record.

The second display module adopts a resistance liquid crystal screen, and its internal liquid crystal control chip is ILI9341, which is directly connected with the second main controller, and uses the resistance liquid crystal screen to realize a graphical operation interface, pipeline pressure data display in the second storage module, pipeline pressure Data result analysis and human-computer interaction.

The keyboard setting module is composed of three independent buttons and a 4×4 membrane keyboard, and the three independent buttons respectively realize the power-on, shutdown and confirmation functions, and the 4×4 membrane keyboard provides ten number buttons from 0 to 9 and a decimal point button , a return button and up, down, left and right direction buttons, which can fully meet the operation requirements of the handheld pressure receiving analyzer.

The alarm module is implemented by a buzzer, connected with the second main controller, and alarms when the checked pipeline pressure value exceeds a preset threshold.

The second working indication module adopts a plurality of LED lights, and uses the second main controller to control the LED lights to turn on and off. The green light indicates normal operation, the red light flickers indicates that the current detection data is abnormal, and the blue light flickers indicates the transmission data.

The workflow of the pipeline pressure acquisition and detection device is shown in Figure 2. After the pipeline pressure acquisition and detection device is turned on, the initialization configuration is first performed, and then the data acquisition process and the dormancy process are alternately carried out to realize the acquisition of pipeline pressure information; during the data acquisition process , the pipeline pressure data is collected every second. After collecting five times in total, data averaging processing is performed to eliminate external interference caused by pipeline pressure fluctuations, and the digitally converted real pressure value of the pipeline together with time information and location information is stored in the The first storage module is stored in the W25Q64FLASH chip; at the same time, during the acquisition process, the pressure value is displayed in real time through the first display module; The consumption of battery power can effectively increase the usable time of the pipeline pressure acquisition and detection device; when the next acquisition process comes, the pipeline pressure acquisition and detection device will automatically exit the dormancy process and enter the data acquisition process.

The pipeline pressure acquisition and detection device sets the time of the data acquisition process and the dormancy process by receiving the control command of the handheld pressure receiving analyzer; in addition, the pipeline pressure acquisition and detection device receives the control command of the handheld pressure receiving analyzer The pipeline pressure data stored in the storage chip of the pipeline pressure acquisition and detection device is wirelessly transmitted to the handheld pressure receiving analyzer for further collection and analysis.

The workflow of the handheld pressure receiving analyzer is shown in Figure 3. After the handheld pressure receiving analyzer is turned on, it first performs initialization configuration, and then combines the keyboard setting module and the graphical operation interface of the second display module to control the handheld pressure receiving analyzer. The analyzer performs functional operations to make it wirelessly communicate with the pipeline pressure acquisition and detection device. After the wireless communication is connected, the handheld pressure receiving analyzer can send control commands to the pipeline pressure acquisition and detection device; the control command includes the pipeline pressure acquisition and detection device The setting of the working state of the detection device includes the sampling process time, the sleep process time, the serial number of the pipeline pressure collection and detection device, etc.; in addition, the control command also includes the pressure data acquisition of the pipeline pressure collection and detection device. When the pipeline pressure acquisition and detection device receives the pressure data acquisition command, it sends the pipeline pressure data stored in its storage module to the handheld pressure receiving analyzer. After the handheld pressure receiving analyzer receives the pressure data, it saves the pipeline pressure data to itself SD card. In addition, the handheld pressure receiving analyzer adopts the keyboard setting module and the graphical operation interface of the second display module to realize the functions of reviewing pipeline pressure data for a fixed period of time, graphical curve display, pipeline pressure threshold comparison and pipeline pressure trend analysis.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. It should also be regarded as the protection scope of the present invention.

Claims (10)

1. a kind of pipeline pressure intelligent checking system, which is characterized in that by multiple spot distributed pipeline pressure acquisition detection device and Hand-held pressure receives analyzer composition；The multiple spot distributed pipeline pressure acquisition detection device includes that several are mounted on pipe The pipeline pressure acquisition detection device of road different location, the pipeline pressure acquisition detection device are used to detect the pipe of present position Road pressure simultaneously realizes storing and transmitting for pressure data；The hand-held pressure receives analyzer and is used for being distributed in different location Pipeline pressure acquisition detection device carry out data collection, and display data and abnormality detection；

The pipeline pressure acquisition detection device by pipeline pressure detection module, the first master controller, the first power module, when Clock module, A/D conversion module, the first display module, the first memory module, first communication module and the first locating module are realized；

The hand-held pressure receives analyzer and is determined by the second master controller, second power supply module, second communication module, second Position module, the second memory module, the second display module, keyboard setup module and alarm module are realized.

2. a kind of pipeline pressure intelligent checking system according to claim 1, which is characterized in that

The pipeline pressure detection module uses CPS181 ceramic pressure sensor, is mounted on inner wall of the pipe, the pipeline pressure Detection module is used to detect the pipeline pressure of present position, and pipeline pressure is converted to a millivolt magnitude voltage signals；

First master controller uses STM32 series monolithic；The first main controller controls clock module is to various behaviour It notes down timestamp, the pipeline pressure data after receiving the conversion of A/D conversion module, and control the display of the first display module and received Pipeline pressure data, while the received pipeline pressure acquisition data of institute are stored in the first memory module；First master control Pipeline pressure data are transmitted to hand-held pressure and receive analyzer by device control first communication module processed；First master controller Receive the location information of the pipeline pressure detection device of the first locating module acquisition；

First power module uses 12V rechargeable type lithium battery for the power supply of CPS181 ceramic pressure sensor；

The clock module uses external real-time clock, for providing temporal information for master controller, and when recording various operations Between stab；；

The A/D conversion module uses AD620 chip, and the millivolt step voltage for exporting pipeline pressure detection module is converted to Standard 0-5V voltage, and AD7799 conversion chip is used, voltage signal is converted to 24 digital signals；The A/D turns It changes the mold block and the pipeline pressure data after conversion is transmitted to by the first master controller by SPI interface；

First display module uses LED common cathode charactron, connect with the first master controller, for showing A/D modulus of conversion Pipeline pressure data after block conversion；

First memory module uses W25Q64FLASH chip, SPI serial communication is used with the first master controller, for depositing Pipeline pressure data after storing up the conversion of A/D conversion module；

The first communication module uses ESP8266WIFI wireless module, is connect, is used using serial mode with the first master controller Analyzer is received in pipeline pressure data are transmitted to hand-held pressure；

First locating module uses Air868 chip, is attached with the first master controller, adopts for providing pipeline pressure Collect the location information of detection device.

3. a kind of pipeline pressure intelligent checking system according to claim 2, which is characterized in that first power module 12V voltage is converted to by 5V voltage using RT272A chip, be A/D conversion module, the first display module, first communication module and The power supply of first locating module；5V voltage is converted to by 3.3V voltage using ASM1117 chip, is the first master controller, first deposits Store up module and clock module power supply.

4. a kind of pipeline pressure intelligent checking system according to claim 2, which is characterized in that the A/D conversion module Configure 3 ceramic pressure sensors.

5. a kind of pipeline pressure intelligent checking system according to claim 2, which is characterized in that

Second master controller uses STM32 series monolithic；Second master controller is received by second communication module The pipeline pressure data that each pipeline pressure acquisition detection device is sent, and store it in the second memory module；Described second is main Controller receives the location information of the staff of the second locating module acquisition；Second master controller also controls the second display Module shows the pipeline pressure data stored in the second memory module, the analysis of pipeline pressure data result and by the second display Module realizes human-computer interaction；Second master controller is when the pipeline pressure numerical value checked is more than threshold value set in advance Control alarm module is alarmed；

The second power supply module is made of 5V rechargeable lithium battery and ASM1117, is second aobvious based on 5V rechargeable lithium battery Show module, second communication module, the second memory module, alarm module and the power supply of the second locating module, it is by ASM1117 that 5V is electric Pressure is converted to 3.3V voltage as the power supply of the second master controller；

The second communication module uses ESP8266WIFI wireless module, sends for receiving pipeline pressure acquisition detection device Pipeline pressure data, and the second master controller is transmitted to by serial ports；

Second locating module uses Air868 chip, is attached with the second master controller, for providing hand-held pressure Receive the location information of analyzer staff；

Second memory module uses SD card, has SDIO interface, connect with the second master controller, for storing each pipeline pressure The pipeline pressure data and operation note of power collecting and detecting device transmission；

Second display module use resistance liquid crystal display, connect with the second master controller, for realizing graphical operation interface, Pipeline pressure data are shown in second memory module, pipeline pressure data result is analyzed and human-computer interaction；

The keyboard setup module is made of three independent keys and one 4 × 4 membrane keyboard, and three independent keys are real respectively Now it is switched on, shuts down and confirms function, 4 × 4 membrane keyboards provide ten digital keys of 0-9, a decimal point key, a return Key and upper and lower, left and right four direction button operation；

The alarm module uses buzzer, connect with the second master controller, for being more than in the pipeline pressure numerical value checked It alarms when set threshold value in advance.

6. a kind of pipeline pressure intelligent checking system according to claim 1, which is characterized in that the pipeline pressure acquisition It further includes work indicating module that detection device and hand-held pressure, which receive analyzer,；The work indicating module uses multiple LED Lamp receives analyzer status for identifying pipeline pressure acquisition detection device or hand-held pressure.

7. a kind of pipeline pressure intelligent checking system according to claim 1, which is characterized in that the pipeline pressure acquisition Detection device workflow includes:

Initial configuration is carried out after the booting of pipeline pressure acquisition detection device；

After the pipeline pressure data of acquisition in one second, acquisition five times, data average treatment is carried out, and will be after number conversion Pipeline pressure data are together with temporal information and location information storage into the first memory module；Simultaneously by the first display module into Row pipeline pressure data are shown；

After collection process, pipeline pressure acquisition detection device enters dormant state；

When next collection process arrives, pipeline pressure acquisition detection device automatically exits from sleep procedure, carries out data again Acquisition.

8. a kind of pipeline pressure intelligent checking system according to claim 1, which is characterized in that the hand-held pressure connects Contracture analyzer workflow includes:

Hand-held pressure carries out initial configuration after receiving analyzer booting；

Analyzer is received to hand-held pressure by keyboard setup module and the graphical operation interface of the second display module to carry out Operation, carries out wireless communication it with pipeline pressure acquisition detection device and connect；

After wirelessly communicating connection, analyzer is received by hand-held pressure and sends control life to pipeline pressure acquisition detection device It enables；

After pipeline pressure acquisition detection device receives pipeline pressure data retrieval commands, the pipeline pressure data that will be stored It is sent to hand-held pressure and receives analyzer；

After hand-held pressure reception analyzer receives, pipeline pressure data are saved into itself SD card.

9. a kind of pipeline pressure intelligent checking system according to claim 8, which is characterized in that the control command includes Setting to pipeline pressure acquisition detection device working condition, including sampling process time, sleep procedure time and pipeline pressure Collecting and detecting device number；It further include to pipeline pressure acquisition detection device pipeline pressure data acquisition.

10. a kind of pipeline pressure intelligent checking system according to claim 8, which is characterized in that the hand-held pressure Analyzer is received period pipeline pressure data are fixed and review, graphically using keyboard setup module and the second display module Curve shows, pipeline pressure threshold value comparison and pipeline pressure trend analysis.