Intelligent underground pipe network information system based on Internet-of-things technology

An Internet of Things technology and information system technology, applied in the field of underground intelligent pipe network information system and underground intelligent pipe network information system based on Internet of Things technology, can solve problems such as the inability to implement underground pipeline management methods.

Active Publication Date: 2016-12-07
上海赋锦信息技术股份有限公司
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AI-Extracted Technical Summary

Problems solved by technology

[0002] In order to develop the underground intelligent pipeline network technology to bring convenient management to the city and prevent risks in time, proceeding from reality, intelligent and networked undergr...
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Method used

Please refer to Fig. 5, described network communication bus 4 is made up of chip U4, resistance R15, R16, R18, R20, R19, R24, R28, electric capacity C27, C29, C28, C30, MOS tube M3 and network transformer B2 . It mainly provides the conversion of data signal mode. The main feature ...
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Abstract

The invention discloses an intelligent underground pipe network information system based on an Internet-of-things technology. The system comprises a power supply and power supply management circuit, an MCU, a GPRS module, a network communication bus, a vibration sensor, a reed switch sensor, a disconnection detection sensing circuit and a double-screw spring pressure transmission rod, and the whole system is sealed in a plastic container; the MCU is connected with the GPRS module, the network communication bus, the vibration sensor, the reed switch sensor and the disconnection detection sensing circuit separately, and the double-screw spring pressure transmission rod is connected with the reed switch sensor; the power supply and power supply management circuit supplies a power supply to the information system. The intelligent underground pipe network information system based on the Internet-of-things technology can achieve data transmission of all nodes and be reliably connected with a nearby small sensor network, conventional sensors can be conveniently networked and connected with a remote big data platform in a butt-joint mode through the nodes, and meanwhile the nodes can be provided with sensors to achieve auxiliary functions such as mobile alarming and disconnection alarming.

Application Domain

Measurement devicesTransmission systems

Technology Topic

Data transmissionNetwork information system +15

Image

  • Intelligent underground pipe network information system based on Internet-of-things technology
  • Intelligent underground pipe network information system based on Internet-of-things technology
  • Intelligent underground pipe network information system based on Internet-of-things technology

Examples

  • Experimental program(3)

Example Embodiment

[0058] Example one
[0059] See figure 1 The present invention discloses an underground intelligent pipe network information system based on the Internet of Things technology. The information system includes: power supply and power management circuit 1, MCU 2, GPRS module 3, network communication bus 4, vibration sensor 5, dry spring The tube sensor 6, the disconnection detection sensing circuit 7, the double spiral spring pressure transmission rod 8, the entire system is sealed in a plastic container.
[0060] The MCU 2 is respectively connected to the GPRS module 3, the network communication bus 4, the vibration sensor 5, the reed switch sensor 6, the disconnection detection sensing circuit 7, and the double coil spring pressure transmission rod 8 is connected to the reed switch sensor 6; power supply and power supply The management circuit 1 provides power for the information system.
[0061] The network communication bus communicates through the isolation transformer; the network communication bus provides the structure of external local networking, and the node sensors on the network can exchange data with the remote big data platform through the GPRS module of the intelligent pipe network node.
[0062] The disconnection detection sensor circuit detects the conduction and open circuit of the external detection line through the isolation transformer. The intelligent pipe network node has a structure of vibration sensor, and can be used to realize vibration detection and automatically send alarm information to the remote big data platform when the installation direction of the intelligent pipe network node changes.
[0063] The pressure detection rod of the intelligent pipe network node uses a coaxial double spiral spring and PVC structure, and has a spherical structure at one end, and a spring and magnetic steel structure at the other end.
[0064] There is a reed switch sensor under the pressure detection rod of the intelligent pipe network node, and the position change of the pressure detection rod is detected by the change of the position of the pressure detection rod, which causes the magnetic steel position change to affect the pull-in and separation of the reed switch sensor.
[0065] When the vibration sensor and the disconnection detection sensing circuit detect the state change, and the double coil spring pressure transmission rod jumps to cause the reed switch sensor to change, the MCU sends the alarm code to the remote big data platform through the GPRS module. Automatically detect the battery voltage every hour and evaluate the remaining power. If the power is sufficient, the current power will be sent at the wake-up time between the sending cycle, otherwise the GPRS module will be turned on in time to inform the big data platform that it needs to be replaced; when the periodic wake-up time is reached, the system first checks whether there If the SMS instruction is processed first, then actively connect to the remote data platform. If the data platform has an instruction to execute the instruction, it will submit a periodic report if not; if the node has a sensor network, the node automatically collects the sensor data at the current moment and actively returns the report; read The sensor data can be collected in a quasi-synchronous way by providing a reference time reference and acquisition time setting from the cloud.
[0066] See figure 2 , The power supply and power management circuit 1 includes a battery BAT2, a voltage regulator LDO (including the sixth chip U6), and a controllable power switch (including the seventh chip U7); among them, the battery BAT2 is the main operating power supply of the system, the 39th The power supply circuit composed of the capacitor C39, the fortieth capacitor C40, the thirty-eighth capacitor C38 and the sixth chip U6 provides uninterrupted power supply to the MCU;
[0067] The positive pole VCC of the battery BAT2 is connected to the input port of the sixth chip U6, the positive pole of the thirty-ninth capacitor C39, and the positive pole of the fortieth capacitor C40. The input port of the sixth chip U6 is connected to the positive pole of the thirty-eighth capacitor C38. The negative pole of the nineteenth capacitor C39, the negative pole of the fortieth capacitor C40, the negative pole of the thirty-eighth capacitor C38, and the negative pole of the battery BAT2 are grounded;
[0068] By the forty-third capacitor C43, the forty-fourth capacitor C44, the forty-fifth capacitor C45, the forty-ninth capacitor C49, the forty-second capacitor C42, the forty-eighth capacitor C48, the forty-sixth capacitor C46, The controllable DCDC composed of the 47th capacitor C47, the 37th resistor R37, the 36th resistor R36, the 38th resistor R38, the second diode D2, the first inductor L1 and the seventh chip U7 gives The GPRS module provides a switchable power supply, and the control signal comes from the GPS_S of the MCU and is sent to the third pin EN control port of the seventh chip U7 through the 37th resistor R37;
[0069] The positive pole of the battery BAT2 is connected to the positive pole of the forty-third capacitor C43, the positive pole of the forty-fourth capacitor C44, the positive pole of the forty-fifth capacitor C45, the VIN port of the seventh chip U7, and the EN port of the seventh chip U7 passes through the third The seventeenth resistor is connected to the MCU, the SS port of the seventh chip U7 is grounded; the seventh port of the seventh chip U7 is connected to the first end of the forty-second capacitor C42, and the SW port of the seventh chip U7 is connected to the forty-second capacitor C42 The second end, the cathode of the second diode D2, and the first end of the first inductor L1; the GS port of the seventh chip U7 and the anode of the second diode D2 are grounded; the second end of the first inductor L1 is connected to the The first end of the forty-eight capacitor C48, the first end of the thirty-sixth resistor R36, the positive electrode of the forty-sixth capacitor C46, ​​and the positive electrode of the forty-seventh capacitor C47; the FB port of the seventh chip U7 is connected to the fortieth The second end of the eight capacitor C48, the second end of the thirty-sixth resistor R36, the first end of the thirty-eighth resistor R38, and the second end of the thirty-eighth resistor R38 are grounded;
[0070] See image 3 The MCU 2 includes a first chip U1, a first high and low frequency crystal oscillator OSC1, a second high and low frequency crystal oscillator OSC2, a power failure monitoring chip U2, an auxiliary battery BAT1, a number of resistors, and a number of capacitors; it mainly provides a serial port ISP synchronous serial port and AD sampling And other action control capabilities (including battery voltage detection, disconnection detection, mechanical movement detection, etc.); among them, the seventeenth resistor R17, the twenty-first resistor R21, the twenty-second resistor R22, the twenty-third resistor R23, The circuit composed of the second MOS tube M2 is used to collect the voltage of the main battery to evaluate the remaining power; after the collection is completed, the second MOS tube M2 is turned off to avoid the additional power consumption of the circuit; it is used to debug and sink the program through the P1 port (Such as image 3 Shown).
[0071] See Figure 4 The GPRS module 3 includes a SIM card circuit and a communication circuit; the SIM card circuit includes a third chip U3, a twentieth capacitor C20, a sixteenth capacitor C16, a twenty-first capacitor C21, a twenty-third capacitor C23, and a third chip U3. Twenty-four capacitor C24, twenty-fifth capacitor C25, twenty-sixth capacitor C26, twenty-second capacitor C22;
[0072] The communication circuit includes the fifth chip U5, the first diode D1, the first LED light LED1, the thirty-third capacitor C33, the thirty-second capacitor C32, the thirty-first capacitor C31, the thirty-fifth capacitor C35, and the Thirty-fourth capacitor C34, thirty-seventh capacitor C37, thirty-sixth capacitor C36, forty-first capacitor C41, twenty-ninth capacitor R29, thirtieth capacitor R30, thirty-first capacitor R31, thirtieth capacitor Two capacitors R32, thirty-third capacitor R33 and antenna ANT1 BT-ANT; mainly responsible for data communication between MCU and cloud, turn on when necessary, and turn off when communication is completed;
[0073] The cathode of the first diode D1 is connected to the first terminal of the 33rd capacitor C33, the first terminal of the 32nd capacitor C32, the first terminal of the 31st capacitor C31, and the anode of the 35th capacitor C35. , The positive pole of the thirty-fourth capacitor C34, the fifth chip U5, the second end of the thirty-third capacitor C33, the second end of the thirty-second capacitor C32, the second end of the thirty-first capacitor C31, the third The negative pole of the fifteenth capacitor C35 and the negative pole of the thirty-fourth capacitor C34 are grounded;
[0074] See Figure 5 The network communication bus 4 includes a fourth chip U4, a fifteenth resistor R15, a sixteenth resistor R16, an eighteenth resistor R18, a twentieth resistor R20, a nineteenth resistor R19, a twenty-fourth resistor R24, The twenty-eighth resistor R28, the twenty-seventh capacitor C27, the twenty-ninth capacitor C29, the twenty-eighth capacitor C28, the thirtieth capacitor C30, the third MOS transistor M3 and the network transformer B2; mainly provide data signal mode Conversion to achieve low power consumption and high isolation, improve product reliability and IPI level; the twentieth resistor R20 acts as a terminal device resistor, the eighteenth resistor R18 and the nineteenth resistor R19 are configurable terminal resistors, which are determined by the configuration With load resistance or without load resistance;
[0075] See Image 6 The shock sensor 5 includes a ninth decoupling capacitor C9, a third resistor R3, a second resistor R2, and a steel ball sensor ST1; the first end of the ninth decoupling capacitor C9 is connected to the first end of the third resistor R3, the steel ball sensor The first end of ST1 is connected to the second end of the third resistor R3 and the second end of the second resistor R2. The second end of the steel ball sensor ST1 and the second end of the ninth decoupling capacitor C9 are grounded; the main function is to sense the product When there is a big vibration and the product is turned over, the MCU will be waked up in time through interrupts, and the MCU will process the alarm signal to notify the cloud;
[0076] See Figure 7 The reed switch sensor 6 includes a miniature reed switch k1, a fourth MOS tube M4, a fiftieth decoupling capacitor C50, a thirty-ninth resistor R39, a fortieth resistor R40, and a forty-first resistor R41;
[0077] The first end of the fiftieth decoupling capacitor C50 is connected to the first end of the fortieth resistor R40, and the second end of the fiftieth decoupling capacitor C50 is grounded; the second end of the miniature dry reed switch k1 is connected to the fortieth end. The second end of the resistor R40, the second end of the thirty-ninth resistor R39, the first end of the miniature dry reed switch k1 is connected to the fourth MOS tube M4; the gate of the fourth MOS tube M4 is connected to the forty-first resistor R41;
[0078] When the pressure bar rises, the movement of the magnetic steel produces an opening and closing action, which sends a mid-end wake-up signal to the MCU, which wakes up the MCU to send an alarm to the remote cloud; the fourth MOS tube M4 is responsible for managing the power consumption of the reed switch circuit, which is selected by configuration. The forty-first resistor R41 is responsible for transmitting the switching signal of the MCU to the fourth MOS transistor M4;
[0079] See Figure 8 , The disconnection detection sensing circuit 7 includes a first resistor R1, a fourth resistor R4, a seventh resistor R7, an eighth resistor R8, a first capacitor C1, a first MOS transistor M1, and a first isolation transformer B1;
[0080] The anode of the first capacitor C1 is connected to the power supply voltage VCC and the first terminal of the first isolation transformer B1, and the cathode of the first capacitor C1 is grounded; the second terminal of the first isolation transformer B1 is connected to the drain of the first MOS transistor M1; The source of the MOS transistor M1 is connected to the seventh resistor R7 and the eighth resistor R8, and the gate of the first MOS transistor M1 is connected to the first resistor R1 and the fourth resistor R4;
[0081] MCU provides a fixed-width pulse signal to the first MOS tube, the first MOS tube has a fixed turn-on time, the pulse current passes through the mutual coupling, and the first isolation transformer B1 generates a changing current slope signal. The second isolation transformer B1 When stages BT1 and BT2 are in short-circuit and open-circuit states respectively, the primary current slope will change in a wide range, and the signals collected with the fixed delay of ADC will also be very different, so as to judge whether the safety line is broken and whether it needs to be remote The cloud submits the alarm judgment; the advantage of using this circuit is isolation and no direct contact with the detected part, which greatly improves the reliability;
[0082] See Picture 9 , Picture 10 The double spiral spring pressure transmission rod 8 includes a coaxially sleeved rod-shaped structure. One section of the rod is equipped with a small plastic ball 81 to facilitate sliding, and the other side is made of PVC fused with a ring-shaped pressure magnet 84, and is supported by a support spring 86 In the installation cavity, when the pressure rod 82 does not have the annular pressure magnet 84 and is elastically ejected from the base, the reed switch 87 loses its magnetism and separates, otherwise the reed switch 87 is closed (the reed switch 87 is set close to the inner cavity 88); The pressure rod 82 (spring rod) of the spring pressure transmission rod 8 and the plastic housing 85-rubber sheath 83 prevent dust and debris from entering the stuck movable gap. Such as Picture 10 As shown, the double coil spring pressure transmission rod includes a left coil spring rod 89 and a right coil spring rod 90.

Example Embodiment

[0083] Example two
[0084] An underground intelligent pipe network information system based on the Internet of Things technology, the information system includes: power supply and power management circuit, MCU, GPRS module, network communication bus, vibration sensor, reed sensor, disconnection detection sensor circuit, Double coil spring pressure transmission rod, the entire system is sealed in a plastic container;
[0085] The MCU is respectively connected to the GPRS module, the network communication bus, the vibration sensor, the reed switch sensor, and the disconnection detection sensing circuit. The double coil spring pressure transmission rod is connected to the reed switch sensor; the power supply and the power management circuit provide power for the information system.
[0086] When the vibration sensor and the disconnection detection sensing circuit detect the state change, and the double coil spring pressure transmission rod jumps to cause the reed switch sensor to change, the MCU sends the alarm code to the remote big data platform through the GPRS module. The interval setting time automatically detects the battery voltage and evaluates the remaining power. If the power is sufficient, the current power will be sent at the interval wake-up time of the sending cycle, otherwise the GPRS module will be turned on in time to inform the big data platform that it needs to be replaced; when the periodic wake-up time is reached, the system first Check if there is a text message command. If it is processed first, then actively connect to the remote data platform. If the data platform has a command to execute the command, submit a periodic report if not; if the node has a sensor network, the node automatically collects the current sensor data and actively returns Report; reading sensor data is collected by the cloud to provide a reference time base and acquisition time settings to achieve quasi-synchronous collection.

Example Embodiment

[0087] Example three
[0088] See figure 1 The underground intelligent pipe network information system based on the Internet of Things technology includes: power supply and power management circuit 1, MCU 2, GPRS module 3, network communication bus 4, vibration sensor 5, reed sensor 6, disconnection detection sensor circuit 7 , Double spiral spring pressure transmission rod 8, constitute a complete system, the entire system is sealed in a plastic container. When the vibration sensor 5 and the disconnection detection sensing circuit 7 detect that the state has changed, and the double coil spring pressure transmission rod 8 jumps to cause the reed sensor 6 to change, the MCU sends the alarm code to the remote large In the data platform, the module automatically detects the battery voltage every hour and evaluates the remaining power. If the power is sufficient, the current power is sent at the wake-up time between the sending cycle, otherwise the GPRS module is turned on in time to inform the big data platform that it needs to be replaced. When the cycle wake-up time arrives, the system first checks whether there is a text message command, if it is processed first, then actively connects to the remote data platform. If the data platform has a command to execute the command, it will submit a cycle report if not. If the node has a sensor network, the node automatically collects the sensor data at the current moment and actively returns the report. Reading sensor data can be collected in a quasi-synchronous way by providing a reference time base and acquisition time settings from the cloud.
[0089] See figure 2 , The power supply and power management circuit 1 includes a battery, LDO and a controllable power switch. Among them, the battery BAT2 is the main working power supply of the system, and the power supply circuit composed of capacitors C39, C40, C38 and U6 provides uninterrupted power supply to the MCU. The controllable DCDC composed of capacitors C43, C44, C45, C49, C42, C48, C46, ​​C47, resistors, R37, R36, R38, diodes, D2, inductances, L1 and U7, provides the GPRS module with a switchable power source. The control signal comes from the GPS_S of the MCU to pin 3 of U7 through R37. EN control port.
[0090] See image 3 , The MCU 2 consists of image 3 U1 and high and low frequency crystal oscillator OSC1 OSC2 power failure monitoring U2 auxiliary battery BAT1 and several other resistors and capacitors and other accessories, mainly provide serial ISP synchronous serial port and AD sampling and other action control capabilities. The circuit composed of R17, R21, R22, R23, and M2 is used to collect the voltage of the main battery to evaluate the remaining power. After the acquisition, turn off M2 to avoid extra power consumption current of the circuit. Port P1 is used for debugging and filling programs.
[0091] See Figure 4 The GPRS module 3 is composed of a SIM card circuit composed of C20, C16, C21, C23, C24, C25, C26, C22, U3, and a SIM card circuit composed of D1 LED1 C33 C32 C31 C35 C34 C37 C36 C41 R29 R30 R31 R32 R33 and antenna ANT1 BT -ANT and the module itself U5. Mainly responsible for data communication between MCU and cloud, turn it on when necessary, and turn it off when communication is complete.
[0092] See Figure 5 The network communication bus 4 is composed of chip U4, resistors R15, R16, R18, R20, R19, R24, R28, capacitors C27, C29, C28, C30, MOS transistor M3, and network transformer B2. It mainly provides the conversion of data signal mode. The main feature is low power consumption and high isolation, which can improve the reliability and IPI level of the product. R20 acts as a terminal device resistor, R18R19 is a configurable terminal resistor, which can be determined by configuration with or without load resistance.
[0093] See Image 6 The shock sensor 5 is composed of a decoupling capacitor C9, resistors R3, R2, and a steel ball sensor ST1. The main function is to wake up the MCU through interrupts in time when the product senses a large shock or the product flips, so that the MCU can process an alarm signal to notify the cloud.
[0094] See Figure 7 The reed switch sensor 6 is composed of a miniature reed switch, a decoupling capacitor C50, and resistors R39 and R40. When the pressure bar rises, the movement of the magnetic steel produces a switching action, which sends a mid-end wake-up signal to the MCU. Wake up the MCU to send an alarm to the remote cloud. M1 is responsible for managing the power consumption of the reed switch circuit, which is selected by configuration, and R41 is responsible for transmitting the switching signal of the MCU to M1.
[0095] See Figure 8 The disconnection detection sensing circuit 7 is composed of resistors R1, R4, R7, R8, capacitor C1, MOS tube M1, and isolation transformer B1. The MCU provides a fixed-width pulse signal to M1, and M1 has a fixed open time. The pulse current passes through the mutual couple B1 to generate a changing current slope signal. When the secondary BT1 and BT2 of B1 are in short-circuit and open-circuit states, the primary current slope will change in a wide range, and the signal collected with the fixed delay of ADC will also occur. The big difference is to judge whether the safety line is broken and whether it is necessary to submit an alarm judgment to the remote cloud. The advantage of using this circuit is isolation and no direct contact with the tested part, which greatly improves the reliability.
[0096] See Picture 9 , Picture 10 The double spiral spring pressure transmission rod 8 is composed of a rod-shaped structure with a coaxial sleeve. One section of the rod is equipped with a plastic ball for easy sliding, and the other side is made of PVC fused with a ring-shaped magnetic steel, and is supported in the installation cavity by a spring. , When the pressure rod has no pressure, the magnetic steel is elastically bounced away from the base, the reed pipe loses its magnetism and separates, otherwise the reed pipe pulls in. The double spiral spring pressure transmission rod and the plastic shell are covered with a rubber sheath to prevent dust and debris from entering the jamming gap.
[0097] In summary, the underground intelligent pipe network information system based on the Internet of Things technology proposed by the present invention can realize the data transmission of each node, and can reliably connect the small network of nearby sensors. Conventional sensors can facilitate networking and pass The node is connected to the remote big data platform. At the same time, the node can have its own sensor to realize mobile alarm, disconnection alarm and other auxiliary functions.

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