CN103035098A - Gas data remote monitoring terminal - Google Patents
Gas data remote monitoring terminal Download PDFInfo
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- CN103035098A CN103035098A CN2012100046468A CN201210004646A CN103035098A CN 103035098 A CN103035098 A CN 103035098A CN 2012100046468 A CN2012100046468 A CN 2012100046468A CN 201210004646 A CN201210004646 A CN 201210004646A CN 103035098 A CN103035098 A CN 103035098A
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Abstract
The invention relates to a data remote monitoring terminal and discloses a gas data remote monitoring terminal. The gas data remote monitoring terminal comprises a Central Processing Unit (CPU) module, an alarm module, a key module, a clock module, a liquid crystal display module, a General Packet Radio Service (GPRS) module, and an RS485 communication module. The alarm module, the key module, the clock module, the liquid crystal display module, the GPRS module, and theRS485 communication module are all connected with the CPU module in a communicating mode. An access control pulse signal sampling circuit and a gas leak pressure data sampling circuit are further included. The gas data remote monitoring terminal achieves a remote real-time monitoring of the gas data, and measured data is accurate and high in accuracy. Data sampled on the spot can be displayed on the spot and screen by screen. Communication addresses of monitoring units can be set by softwares. With communication protocols established, problem which exists in the real-time communication among a plurality of the monitoring units or even hundreds of the monitoring units can be solved, and later monitoring unit expansion is more convenient. Wireless communication network transmission enables data of all the scattered pressure regulating sites to be timely and accurately transmitted to a central control server.
Description
Technical field
The present invention relates to a kind of data inspect terminal, specifically a kind of combustion gas data remote detecting terminal.
Background technology
Gas pressure regulating station, valve well, flowmeter are the important component parts of gas transmission ﹠ distribution, it is an important step of the adjusting of gas ductwork air feed and safety management, and have wide, the unattended characteristics of distribution, so safety and the operational management how to strengthen gas pressure regulating station, valve well and flowmeter in unattended situation are exactly an important problem.
At present the safe operation disposal route of gas pressure regulating station, valve well, flowmeter had: ⑴ locks the door and window of the gas pressure regulating station; ⑵ each pressure regulation website cleaning of sending someone every day checks the manometric data that are installed on the pipeline, changes the recording chart on the pressure record device one time in 24 hours, and judges accordingly ruuning situation and the failure condition of voltage regulating station; (3) if the catastrophic failures such as operation irregularity or gas leakage appear in pressure regulation website or valve well, the gas user such as usually only have to play guarantee, the again arrangement personnel maintenance of showing up of gas company; (4) send someone weekly or per month that each checks flowmeter operating mode and copy reading data with gas unit.
As can be seen from the above, present processing mode has following features: the workload of 1, send someone every day each gas pressure regulating station and valve well point site inspection pressure condition and the situation of leakage is large, backward in management; 2, need initiatively phone guarantee of gas user when the catastrophic failures such as operation irregularity or gas leakage appear in the equipment of pressure regulation website, gas company work is passive, and maintenance seriously lags behind, and does not understand the on-the-spot relatively accurate situation of fault before the maintenance; 3, unrelated person is invaded voltage regulating station or valve well when destroyed, gas company can't in time be grasped; 4, manually to the doorstep the copy reading flow meter data waste time and energy, operating mode and failure condition can't in time be grasped.
Summary of the invention
Technical matters to be solved by this invention is, overcome the shortcoming of prior art, provide a kind of, can ensure the safe operation of gas pressure regulating station, valve well, flowmeter, accomplish the field data Real-Time Monitoring, fault is in time initiatively grasped, and trespasses in time and reminds, the major accidents such as gas leakage are in time got rid of, and can monitor timely and accurately the vaporous condition of usefulness and flowmeter operating mode that each uses gas unit.
The technical scheme that the present invention solves above technical matters is:
Combustion gas data remote detecting terminal, comprise CPU module, alarm module, key-press module, clock module, LCD MODULE, GPRS module and RS485 communication module, alarm module, key-press module, clock module, LCD MODULE, GPRS module and RS485 communication module are connected and are connected with the CPU module communication; Also comprise the gate inhibition's pulse signal sampling circuit and the gas leakage pressure data sample circuit that are connected with the CPU module communication;
Gate inhibition's pulse signal sampling circuit is by connection terminal J8, resistance R 87 and R92, capacitor C 14 and C15 and diode D5 and D9 and moment twin zener dioder TV7 and TV8 form, connection terminal J8 has two input ends and an earth terminal, the earth terminal of connection terminal J8 links to each other with the positive pole that reaches moment twin zener dioder TV7, the negative pole of the negative pole series diode D5 of moment twin zener dioder TV7, the end of the cathode series resistance R87 of diode D5, the other end of resistance R 87 connects 3V voltage, capacitor C 14 is connected between the positive pole of the positive pole of diode D5 and moment twin zener dioder TV7, the pulse signal input terminal of CPU module is connected between diode D5 and the resistance R 87, and the input end of connection terminal J8 is connected between diode D5 and the moment twin zener dioder TV7; The earth terminal of connection terminal J8 links to each other with the positive pole that reaches moment twin zener dioder TV8, the negative pole of the negative pole series diode D9 of moment twin zener dioder TV8, the end of the cathode series resistance R92 of diode D9, the other end of resistance R 92 connects 3V voltage, capacitor C 15 is connected between the positive pole of the positive pole of diode D9 and moment twin zener dioder TV8, the pulse signal input terminal of CPU module is connected between diode D9 and the resistance R 92, and another input end of connection terminal J8 is connected between diode D9 and the moment twin zener dioder TV8; Outside gate inhibition's signal passes through switching value, draws on being undertaken by resistance R 87 and R92, produces pulse signal, carries out data by the CPU module and processes;
Gas leakage pressure data sample circuit is by safety barrier M2; connection terminal J4 and holding circuit form; holding circuit is by moment twin zener dioder TV15; capacitor C 23; resistance R 43 and resistance R 86 form; resistance R 43 and resistance R 86 parallel connections; capacitor C 23 is in parallel with resistance R 86; one of capacitor C 23 terminates between resistance R 43 and the resistance R 86; the positive pole of another termination moment twin zener dioder TV15; the negative pole of moment twin zener dioder TV15 is connected on the input end of resistance R 43; the input end of resistance R 43 is the input end of holding circuit; one end of the output of resistance R 43 and resistance R 86 is connected to the output terminal of holding circuit; the other end of resistance R 86; the anodal common ground of the other end of capacitor C 23 and moment twin zener dioder TV15; the input termination pressure transducer of safety barrier M2; the input end of output termination connection terminal J4; the output terminal of connection terminal J4 connects the input end of holding circuit; the analog input end of the output termination CPU module of holding circuit; powered by sensor supply voltage module indirect; sensor is with the holding circuit of the current signal process safety barrier M2 of generation; carry out dividing potential drop through resistance R 43 and R86; the CPU module is carried out the analog quantity sampling in the analog input end; by the analog to digital conversion that CPU is built-in data are processed; obtain data-signal; if data occur unusual; then the CPU module is judged as data exception and produces alerting signal, is reported to the police by alarm module.
The technical scheme that the present invention further limits is:
Aforesaid combustion gas data remote detecting terminal, the CPU module is the MSP430 chip, be connected to reset circuit on it, reset circuit is comprised of diode V9, resistance R 113 and capacitor C 104, diode V9 and resistance R 113 ends rear and capacitor C 104 in parallel access No. 58 pins of CPU module, the other end ground connection of capacitor C 104 jointly.
Aforesaid combustion gas data remote detecting terminal, clock module comprises the crystal oscillator G1 that is connected between the crystal oscillator G2 that is connected between No. 8 pins of CPU module and No. 9 pins and No. 51 pins of CPU module and No. 52 pins, and crystal oscillator G1 is in parallel with two series capacitance C83 and C84.
Aforesaid combustion gas data remote detecting terminal, GPRS module are Siemens MC 52i chip.
Aforesaid combustion gas data remote detecting terminal, the RS485 communication module is by 485 communication chip U15, safety barrier M1, resistance R 56, resistance R 80, resistance R 57, moment twin zener dioder TV2 and capacitor C 9 form, the communication signal output terminal of the input termination CPU module of 485 communication chip U15, the input end of the output termination safety barrier M1 of 485 communication chip U15, resistance R 56, resistance R 80 and resistance R 57 series connection, one end of resistance R 56 is connected with resistance R 80, the other end is told two-way, lead up to capacitor C 9 ground connection, another road connects voltage, one end of resistance R 57 with connect with resistance R 80, other end ground connection is connected to moment twin zener dioder TV2 between two input ends of two of 485 communication chip U15 output terminations and safety barrier M1.
LCD MODULE among the present invention is existing liquid crystal display, and alarm module also is existing warning mould device, and key-press module also is existing button pushing device, can select in existing relevant device, only they need be connected on the CPU module of the present invention to get final product.
The invention has the beneficial effects as follows: ⑴ combustion gas remote data Real-Time Monitoring, measurement data is accurate, and precision is high; ⑵ scene can displaying scene the data of sampling, and can show by screen display; ⑶ the mailing address of monitoring means can software set, by establishment communication protocol, just can solve and a plurality of even up to a hundred monitoring means between Real Time Communication Problems, also make things convenient for later detecting unit to expand; ⑷ cordless communication network transmission is so that the data of each the pressure regulation website that disperses transfer to central control server timely and accurately.
Description of drawings
Fig. 1 is module connection diagram of the present invention.
Fig. 2 is the circuit connection diagram of CPU module.
Fig. 3 is the circuit connection diagram of GPRS module.
Fig. 4 is the circuit connection diagram of RS485 communication module.
Fig. 5 is the circuit diagram of gate inhibition's pulse signal sampling circuit.
Fig. 6 is the circuit diagram of gas leakage pressure data sample circuit.
Embodiment
Present embodiment provides a kind of combustion gas data remote detecting terminal, module connects as shown in Figure 1, comprise CPU module, alarm module, key-press module, clock module, LCD MODULE, GPRS module and RS485 communication module, alarm module, key-press module, clock module, LCD MODULE, GPRS module and RS485 communication module are connected and are connected with the CPU module communication; Also comprise the gate inhibition's pulse signal sampling circuit and the gas leakage pressure data sample circuit that are connected with the CPU module communication; LCD MODULE is existing liquid crystal display, and alarm module also is existing warning mould device, and key-press module also is existing button pushing device, can select in existing relevant device, only they need be connected on the CPU module to get final product.
CPU module U8 is the MSP430 chip, circuit as shown in Figure 2, be connected to reset circuit on it, reset circuit is comprised of diode V9, resistance R 113 and capacitor C 104, diode V9 and resistance R 113 ends rear and capacitor C 104 in parallel access No. 58 pins (REST pin) of CPU module, the other end ground connection of capacitor C 104 jointly.Clock module comprises the crystal oscillator G1 that is connected between the crystal oscillator G2 that is connected between No. 8 pins of MSP430 chip and No. 9 pins and No. 51 pins of MSP430 chip and No. 52 pins, and crystal oscillator G1 is in parallel with two series capacitance C83 and C84.
The GPRS module is Siemens MC 52i chip, electrograph as shown in Figure 3, indirectly produce supply voltage by the GPRS voltage module, by the SIM card module GPRS module is carried out read write command and data transmission, when the needs real-time online, the GPRS supply voltage is with continued power, carried out transmission and the reception of data by SIM card module and GPRS module, when receiving when order is set, the GPRS module will have data to send CPU to, CPU recognition command and equipment carried out the data setting.
RS485 communication module electrograph as shown in Figure 4, the RS485 communication module is by 485 communication chip U15, safety barrier M1, resistance R 56, resistance R 80, resistance R 57, moment twin zener dioder TV2 and capacitor C 9 form, the communication signal output terminal of the input termination CPU module of 485 communication chip U15, the input end of the output termination safety barrier M1 of 485 communication chip U15, resistance R 56, resistance R 80 and resistance R 57 series connection, one end of resistance R 56 is connected with resistance R 80, the other end is told two-way, lead up to capacitor C 9 ground connection, another road connects voltage, one end of resistance R 57 with connect with resistance R 80, other end ground connection is connected to moment twin zener dioder TV2 between two input ends of two of 485 communication chip U15 output terminations and safety barrier M1.485 communication chip supply modules regularly produce supply voltage, data-signal is produced by CPU, be converted to the LVDS signal via 485 communication chip U15, carry out upper pull down resistor by resistance R 56 and R57, after carry out communication through safety barrier M1 and slave computer, the data-signal that obtains is processed through CPU is arranged.
Gate inhibition's pulse signal sampling circuit as shown in Figure 5, by connection terminal J8, resistance R 87 and R92, capacitor C 14 and C15 and diode D5 and D9 and moment twin zener dioder TV7 and TV8 form, connection terminal J8 has two input ends and an earth terminal, the earth terminal of connection terminal J8 links to each other with the positive pole that reaches moment twin zener dioder TV7, the negative pole of the negative pole series diode D5 of moment twin zener dioder TV7, the end of the cathode series resistance R87 of diode D5, the other end of resistance R 87 connects 3V voltage, capacitor C 14 is connected between the positive pole of the positive pole of diode D5 and moment twin zener dioder TV7, the YX4 pin of CPU module is connected between diode D5 and the resistance R 87, and the input end of connection terminal J8 is connected between diode D5 and the moment twin zener dioder TV7; The earth terminal of connection terminal J8 links to each other with the positive pole that reaches moment twin zener dioder TV8, the negative pole of the negative pole series diode D9 of moment twin zener dioder TV8, the end of the cathode series resistance R92 of diode D9, the other end of resistance R 92 connects 3V voltage, capacitor C 15 is connected between the positive pole of the positive pole of diode D9 and moment twin zener dioder TV8, the MC1 pin of CPU module is connected between diode D9 and the resistance R 92, and another input end of connection terminal J8 is connected between diode D9 and the moment twin zener dioder TV8; Outside gate inhibition's signal passes through switching value, draws on being undertaken by resistance R 87 and R92, produces pulse signal, carries out data by the CPU module and processes.
Gas leakage pressure data sample circuit as shown in Figure 6; by safety barrier M2; connection terminal J4 and holding circuit form; holding circuit is by moment twin zener dioder TV15; capacitor C 23; resistance R 43 and resistance R 86 form; resistance R 43 and resistance R 86 parallel connections; capacitor C 23 is in parallel with resistance R 86; one of capacitor C 23 terminates between resistance R 43 and the resistance R 86; the positive pole of another termination moment twin zener dioder TV15; the negative pole of moment twin zener dioder TV15 is connected on the input end of resistance R 43; the input end of resistance R 43 is the input end of holding circuit; one end of the output of resistance R 43 and resistance R 86 is connected to the output terminal of holding circuit; the other end of resistance R 86; the anodal common ground of the other end of capacitor C 23 and moment twin zener dioder TV15; the input end YL1 of safety barrier M2 connects pressure transducer; the input end of output termination connection terminal J4; the output terminal of connection terminal J4 connects the input end of holding circuit; the analog input end of the output termination CPU module of holding circuit; powered by sensor supply voltage module indirect; sensor is with the holding circuit of the current signal process safety barrier M2 of generation; carry out dividing potential drop through resistance R 43 and R86; CPU modules A DC1 pin carries out the analog quantity sampling; by the analog to digital conversion that CPU is built-in data are processed; obtain data-signal; if data occur unusual; then the CPU module is judged as data exception and produces alerting signal, is reported to the police by alarm module.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (5)
1. combustion gas data remote detecting terminal, comprise CPU module, alarm module, key-press module, clock module, LCD MODULE, GPRS module and RS485 communication module, described alarm module, key-press module, clock module, LCD MODULE, GPRS module and RS485 communication module are connected and are connected with described CPU module communication; It is characterized in that: also comprise the gate inhibition's pulse signal sampling circuit and the gas leakage pressure data sample circuit that are connected with the CPU module communication;
Described gate inhibition's pulse signal sampling circuit is by connection terminal J8, resistance R 87 and R92, capacitor C 14 and C15 and diode D5 and D9 and moment twin zener dioder TV7 and TV8 form, described connection terminal J8 has two input ends and an earth terminal, the earth terminal of described connection terminal J8 links to each other with the positive pole that reaches moment twin zener dioder TV7, the connect negative pole of described diode D5 of the negative pole of described moment twin zener dioder TV7, a connect end of described resistance R 87 of the positive pole of described diode D5, the other end of described resistance R 87 connects 3V voltage, described capacitor C 14 is connected between the positive pole of the positive pole of diode D5 and moment twin zener dioder TV7, the pulse signal input terminal of described CPU module is connected between diode D5 and the resistance R 87, and the input end of described connection terminal J8 is connected between diode D5 and the moment twin zener dioder TV7; The earth terminal of described connection terminal J8 links to each other with the positive pole that reaches moment twin zener dioder TV8, the connect negative pole of described diode D9 of the negative pole of described moment twin zener dioder TV8, a connect end of described resistance R 92 of the positive pole of described diode D9, the other end of described resistance R 92 connects 3V voltage, described capacitor C 15 is connected between the positive pole of the positive pole of diode D9 and moment twin zener dioder TV8, the pulse signal input terminal of described CPU module is connected between diode D9 and the resistance R 92, and another input end of described connection terminal J8 is connected between diode D9 and the moment twin zener dioder TV8; Outside gate inhibition's signal passes through switching value, draws on being undertaken by resistance R 87 and R92, produces pulse signal, carries out data by the CPU module and processes;
Described gas leakage pressure data sample circuit is by safety barrier M2; connection terminal J4 and holding circuit form; described holding circuit is by moment twin zener dioder TV15; capacitor C 23; resistance R 43 and resistance R 86 form; described resistance R 43 and resistance R 86 parallel connections; described capacitor C 23 is in parallel with resistance R 86; one of described capacitor C 23 terminates between described resistance R 43 and the resistance R 86; the positive pole of another termination twin zener dioder TV15 of described moment; the negative pole of described moment twin zener dioder TV15 is connected on the input end of described resistance R 43; the input end of described resistance R 43 is the input end of described holding circuit; one end of the output of described resistance R 43 and described resistance R 86 is connected to the output terminal of described holding circuit; the other end of described resistance R 86; the anodal common ground of the other end of described capacitor C 23 and moment twin zener dioder TV15; the input termination pressure transducer of described safety barrier M2; the input end of output termination connection terminal J4; the output terminal of connection terminal J4 connects the input end of described holding circuit; the analog input end of the described CPU module of output termination of described holding circuit; powered by sensor supply voltage module indirect; sensor is with the holding circuit of the current signal process safety barrier M2 of generation; carry out dividing potential drop through resistance R 43 and R86; the CPU module is carried out the analog quantity sampling in the analog input end; by the analog to digital conversion that CPU is built-in data are processed; obtain data-signal; if data occur unusual; then the CPU module is judged as data exception and produces alerting signal, is reported to the police by described alarm module.
2. combustion gas data remote detecting terminal as claimed in claim 1, it is characterized in that: described CPU module is the MSP430 chip, be connected to reset circuit on it, described reset circuit is comprised of diode V9, resistance R 113 and capacitor C 104, described diode V9 and resistance R 113 ends rear and capacitor C 104 in parallel access No. 58 pins of CPU module, the other end ground connection of capacitor C 104 jointly.
3. combustion gas data remote detecting terminal as claimed in claim 2, it is characterized in that: described clock module comprises the crystal oscillator G1 that is connected between the crystal oscillator G2 that is connected between No. 8 pins of CPU module and No. 9 pins and No. 51 pins of CPU module and No. 52 pins, and described crystal oscillator G1 is in parallel with two series capacitance C83 and C84.
4. combustion gas data remote detecting terminal as claimed in claim 1, it is characterized in that: described GPRS module is Siemens MC 52i chip.
5. combustion gas data remote detecting terminal as claimed in claim 1, it is characterized in that: described RS485 communication module is by 485 communication chip U15, safety barrier M1, resistance R 56, resistance R 80, resistance R 57, moment twin zener dioder TV2 and capacitor C 9 form, the communication signal output terminal of the input termination CPU module of described 485 communication chip U15, the input end of the described safety barrier M1 of output termination of described 485 communication chip U15, described resistance R 56, resistance R 80 and resistance R 57 series connection, one end of described resistance R 56 is connected with resistance R 80, the other end is told two-way, lead up to capacitor C 9 ground connection, another road connects voltage, one end of described resistance R 57 with connect with resistance R 80, other end ground connection is connected to moment twin zener dioder TV2 between two output terminations of described 485 communication chip U15 and two input ends of described safety barrier M1.
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| CN201210004646.8A CN103035098B (en) | 2012-01-09 | 2012-01-09 | Gas data remote monitoring terminal |
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| CN201210004646.8A CN103035098B (en) | 2012-01-09 | 2012-01-09 | Gas data remote monitoring terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104103147A (en) * | 2014-07-15 | 2014-10-15 | 超达阀门集团股份有限公司 | Pipeline flow remote pre-warning system |
| CN104269029A (en) * | 2014-09-11 | 2015-01-07 | 河南中能新能源有限公司 | Natural gas leakage alarming system |
| CN104655192A (en) * | 2015-02-12 | 2015-05-27 | 杨晓东 | Gas volume and gas leakage intelligent remote monitoring system for liquid gas storage tank |
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| CN103035098B (en) | 2014-10-01 |
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