CN204029147U - Based on the bus-structured gas meter mobile recorder of industrial instrument - Google Patents
Based on the bus-structured gas meter mobile recorder of industrial instrument Download PDFInfo
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- CN204029147U CN204029147U CN201420411971.0U CN201420411971U CN204029147U CN 204029147 U CN204029147 U CN 204029147U CN 201420411971 U CN201420411971 U CN 201420411971U CN 204029147 U CN204029147 U CN 204029147U
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Abstract
The utility model provides a kind of based on the bus-structured gas meter mobile recorder of industrial instrument, comprises gas meter and collects gas circuit, gas meter data transmit circuit, gas meter data receiver circuit, power supply, industrial instrument bus and Wireless Fidelity circuit; Wherein said gas meter is collected circuit and is connected with gas meter data transmit circuit, gas meter data receiver circuit, power supply, industrial instrument bus and Wireless Fidelity circuit respectively; Described gas meter data transmit circuit comprises adjustable three and rectifies Voltagre regulator LM317 and peripheral circuit thereof; Described gas meter data receiver circuit comprises comparer LM393 and peripheral circuit thereof; Described power supply is collected circuit, gas meter data transmit circuit, ammeter data receiving circuit, industrial instrument bus and Wireless Fidelity circuit to gas meter respectively and is powered; The utility model mobile recorder adopts lithium battery group to power, and has the features such as easy to carry, data rate is fast, structure is simple, cost is low, installation and maintenance are easy.
Description
Technical field
The utility model relates to user's gas meter status information monitoring field, specifically a kind of based on the bus-structured gas meter mobile recorder of industrial instrument.
Background technology
At present, most gas meter does not possess the function of data message teletransmission, Utilities Electric Co. want obtain user use water information, only take human at periodic intervals to visit and sweep the form of table, time of so not only checking meter is long, waste of manpower, material resources, and cannot in time the data collected be stored and be analyzed.
For present situation, some adopt the wire transmission modes such as RS485, MBUS to send the data of gas meter to control center, manual routing's at substantial man power and material from gas meter company, necessary rewiring when collector needs to add new equipment, poor expandability.Because most gas meter is arranged in well or outdoor, there is very large problem in equipment power-extracting.
Gathering gas meter condition information to realize network communication, proposing the gas meter collector based on lithium battery power supply.The handheld devices such as gas meter is connected with collector through industrial bus, mobile phone realize the collection to the gas meter data in MBUS bus by WIFI wireless network.When Utilities Electric Co. checks meter, as long as install meter reading software on mobile phone or panel computer, the collection to gas meter data, storage and statistics just can be realized.This collector has the features such as be convenient for carrying, data rate is fast, structure is simple, cost is low, mobile phone or flat board are checked meter.Be suitable for installing and using in gas meter power supply facilities.
Summary of the invention
For above deficiency of the prior art, the purpose of this utility model be to provide a kind of easy to carry, data rate is fast, structure is simple, cost is low, installation and maintenance are easy to based on the bus-structured gas meter mobile recorder of industrial instrument.For achieving the above object, the technical solution of the utility model is:
Based on the bus-structured gas meter mobile recorder of industrial instrument, it comprises gas meter writing circuit, gas meter data transmit circuit, gas meter data receiver circuit, power supply, industrial instrument bus and Wireless Fidelity circuit, wherein
Described gas meter writing circuit is connected with Wireless Fidelity circuit, gas meter data transmit circuit, gas meter data receiver circuit and power supply respectively;
Described gas meter data transmit circuit comprises photoisolator U9, triode Q4, adjustable three rectify Voltagre regulator LM317, the MCU TXD port of described gas meter writing circuit is connected with the pin two of photoisolator U9, the pin one of described photoisolator U9 is connected with 3.3V voltage by resistance R32, the pin 4 of described photoisolator U9 is connected with 12V voltage, the pin 3 of described photoisolator I U9 leads up to resistance R47 ground connection, resistance of separately leading up to is connected with the base stage of triode Q4, the grounded emitter of triode Q4, the collector of triode Q4 to be held with adjustable three ADJ rectifying Voltagre regulator LM317 by resistance R58 and is connected, the described adjustable three ADJ ends rectifying Voltagre regulator LM317 lead up to resistance R59 ground connection, lead up to electric capacity C28 ground connection, resistance R60 of separately leading up to holds with adjustable three Vout rectifying Voltagre regulator LM317 and is connected, the described adjustable three Vin ends rectifying Voltagre regulator LM317 are connected with 35V voltage, described adjustable three rectify the Vout end of Voltagre regulator LM317 by electric capacity C24 ground connection, the described adjustable three Vout ends rectifying Voltagre regulator LM317 are connected with industrial instrument bus by resistance R61, described industrial instrument bus is connected with gas meter,
Described gas meter data receiver circuit (3) comprises comparer LM393, diode D4, U7 and electric capacity E6, meter bus is leaded up to resistance R63 and is connected with the input anode of comparer LM393, another road is connected with the positive pole of diode D4, the negative pole of diode D4 is connected with comparer LM393 input cathode by resistance R63, described comparer LM393 input cathode leads up to resistance R65 ground connection, one tunnel is connected with the positive pole of electric capacity E6, the minus earth of described electric capacity E6; Described 35V power supply is connected and ground connection with comparer LM393 by U6B, and the described output terminal of comparer LM393 is connected with the pin two of U7, and is connected with the MCU RXD port of gas meter writing circuit (1) by pin 4; Pin 3 ground connection of described U7, the pin 4 of U7 is connected with 3.3V voltage by resistance R6, and 1 pin of U7 is connected with 12V voltage by resistance R46;
Described power supply is powered to gas meter writing circuit, gas meter data transmit circuit, gas meter data receiver circuit, power supply, industrial instrument bus and Wireless Fidelity circuit respectively;
Further, described gas meter writing circuit is 8 or 16 MCU.
Further, described power supply is lithium battery group.
Further, described Wireless Fidelity circuit adopts Wireless Fidelity circuit module USR-WIFI232-G.
Advantage of the present utility model and beneficial effect as follows:
This collector adopts gas meter writing circuit, Wireless Fidelity circuit and industrial instrument bus bus, has features such as being convenient for carrying, data rate is fast, structure is simple, cost is low, mobile phone or flat board are checked meter.Be suitable for installing and using in gas meter facility.
Accompanying drawing explanation
Figure 1 shows that the utility model preferred embodiment is based on the bus-structured gas meter mobile recorder of industrial instrument;
Fig. 2 is the utility model preferred embodiment gas meter data transmit circuit figure;
Fig. 3 is the utility model preferred embodiment gas meter data receiver circuit figure.
Embodiment
The embodiment providing an indefiniteness below in conjunction with accompanying drawing is further elaborated the utility model.
Shown in Fig. 1-Fig. 3, Fig. 1 is a kind of based on the bus-structured gas meter mobile recorder of industrial instrument, it is characterized in that: comprise gas meter writing circuit 1), gas meter data transmit circuit 2, gas meter data receiver circuit 3, power supply 4, industrial instrument bus 5 and Wireless Fidelity circuit 6; Wherein
Described gas meter writing circuit 1 is connected with Wireless Fidelity circuit 6, gas meter data transmit circuit 2, gas meter data receiver circuit 3 and power supply 4 respectively;
Described gas meter data transmit circuit 2 comprises photoisolator U9, triode Q4, adjustable three rectify Voltagre regulator LM317, the MCU TXD port of described gas meter writing circuit 1 is connected with the pin two of photoisolator U9, the pin one of described photoisolator U9 is connected with 3.3V voltage by resistance R32, the pin 4 of described photoisolator U9 is connected with 12V voltage, the pin 3 of described photoisolator I U9 leads up to resistance R47 ground connection, resistance of separately leading up to is connected with the base stage of triode Q4, the grounded emitter of triode Q4, the collector of triode Q4 to be held with adjustable three ADJ rectifying Voltagre regulator LM317 by resistance R58 and is connected, the described adjustable three ADJ ends rectifying Voltagre regulator LM317 lead up to resistance R59 ground connection, lead up to electric capacity C28 ground connection, resistance R60 of separately leading up to holds with adjustable three Vout rectifying Voltagre regulator LM317 and is connected, the described adjustable three Vin ends rectifying Voltagre regulator LM317 are connected with 35V voltage, described adjustable three rectify the Vout end of Voltagre regulator LM317 by electric capacity C24 ground connection, the described adjustable three Vout ends rectifying Voltagre regulator LM317 are connected with industrial instrument bus by resistance R61, described industrial instrument bus is connected with gas meter,
Described gas meter data receiver circuit 3 comprises comparer LM393, diode D4, U7 and electric capacity E6, meter bus 5 is leaded up to resistance R63 and is connected with the input anode of comparer LM393, another road is connected with the positive pole of diode D4, the negative pole of diode D4 is connected with comparer LM393 input cathode by resistance R63, described comparer LM393 input cathode leads up to resistance R65 ground connection, one tunnel is connected with the positive pole of electric capacity E6, the minus earth of described electric capacity E6; Described 35V power supply is connected and ground connection with comparer LM393 by U6B, and the described output terminal of comparer LM393 is connected with the pin two of U7, and is connected with the MCU RXD port of gas meter writing circuit 1 by pin 4; Pin 3 ground connection of described U7, the pin 4 of U7 is connected with 3.3V voltage by resistance R6, and 1 pin of U7 is connected with 12V voltage by resistance R46;
Described power supply 4 is powered to gas meter writing circuit 1, gas meter data transmit circuit 2, gas meter data receiver circuit 3, power supply 4, industrial instrument bus 5 and Wireless Fidelity circuit 6 respectively;
Described gas meter writing circuit 1 is 8 or 16 MCU.
Described power supply 4 is lithium battery group.
Described Wireless Fidelity circuit 6 adopts Wireless Fidelity circuit module USR-WIFI232-G.
Send and record principle: industrial instrument bus master is the mode traffic bit information changed by level to the code stream from equipment, level complies with the following requirements: the voltage of logical one (MARK) corresponding 36V, when transmitting logical zero (SPACE), the voltage in bus reduces to 24V from 36V.Industrial instrument bus slave is realized from the electric current of devices consume by modulation to the code stream of main equipment, electric current complies with the following requirements: logical one (MARK) represents with the steady current of 1.5mA, and logical zero (SPACE) then need add the electric current of 11-20mA on the basis of 1.5mA.Stationary state in industrial instrument bus is logical one, and the voltage now on bus driver is 36V, is 1.5mA steady current from the quiescent current of equipment.When all from equipment not output logic " 0 " time, bus driver exports a constant electric current to drive bus, due to the resistive degeneration of transmission line, simultaneously according to from equipment and the distance of main equipment and the size from the total quiescent current of equipment, in the virtual voltage outline from equipment end lower than 36V.Therefore from being that the skew according to 12V level instead of the absolute value according to voltage carry out during the code stream of equipment on identification bus.Main equipment is then have the increase of 11-20mA to differentiate according to bus current when receiving the SPACE value sent from equipment.Therefore the direction of M-Bus at any time data transmission is unidirectional, and from main equipment to from equipment or from from equipment to main equipment, this communication mode not only achieves and have also obtained very strong resistivity to external disturbance to the remote power feeding from equipment simultaneously.
Preferably, when mobile phone/panel computer gathers the information of gas meter, the collection control signal that described Wireless Fidelity circuit 6 is sent by WIFI antenna reception mobile phone/panel computer, and be transmitted to Acquisition Circuit 1 by the TXD WIFI terminal of Wireless Fidelity circuit 6, collection control signal is sent to transtation mission circuit 2 by MCU TXD terminal by described Acquisition Circuit 1, described transtation mission circuit 2 is rectified Voltagre regulator LM317M by adjustable three and is exported high/low voltage, and through MBUS bus, control signal is sent to gas meter;
The effect of USR-WIFI232-G is exactly a WIFI hot spot, substantially the same with the effect of wireless router; Its inside is except the physics focus of WIFI, and also have a TCP circuit, IP is 10.10.100.254, port is 8899, after mobile phone connects the WIFI network of this phase module upper, after being connected to TCP circuit, just can realize the data transparent transmission before TCP connection and serial ports
Preferably, when information about power is returned to mobile phone/panel computer by MBUS by gas meter, described gas meter is connected with receiving circuit 3 through MBUS bus, information about power signal is transmitted to the MCU RXD port of Acquisition Circuit 1 by described receiving circuit 3 by comparer LM393, information about power signal is sent to the RXD terminal of WIFI circuit by described Acquisition Circuit 1, and sends to mobile phone/panel computer by WIFI antenna.
It is further preferred that described Acquisition Circuit 1 is 8 or 16 MCU, preferably, described Acquisition Circuit 1 is single machine unit;
It is further preferred that described power supply 4 is 14.8V 4400mAH lithium battery group.
In the present embodiment, described gas meter is intelligent gas meter, is connected with collector through MBUS bus, and the handheld device that mobile phone, iPad etc. have WIFI network is connected to Wireless Fidelity circuit 6 circuit, obtains gas meter information, realize radio meter register by cell phone software.
These embodiments are interpreted as only being not used in restriction protection domain of the present utility model for illustration of the utility model.After the content of reading record of the present utility model, technician can make various changes or modifications the utility model, and these equivalence changes and modification fall into the utility model claim limited range equally.
Claims (4)
1. based on the bus-structured gas meter mobile recorder of industrial instrument, it is characterized in that: comprise gas meter writing circuit (1), gas meter data transmit circuit (2), gas meter data receiver circuit (3), power supply (4), industrial instrument bus (5) and Wireless Fidelity circuit (6); Wherein
Described gas meter writing circuit (1) is connected with Wireless Fidelity circuit (6), gas meter data transmit circuit (2), gas meter data receiver circuit (3) and power supply (4) respectively;
Described gas meter data transmit circuit (2) comprises photoisolator U9, triode Q4, adjustable three rectify Voltagre regulator LM317, the MCU TXD port of described gas meter writing circuit (1) is connected with the pin two of photoisolator U9, the pin one of described photoisolator U9 is connected with 3.3V voltage by resistance R32, the pin 4 of described photoisolator U9 is connected with 12V voltage, the pin 3 of described photoisolator I U9 leads up to resistance R47 ground connection, resistance of separately leading up to is connected with the base stage of triode Q4, the grounded emitter of triode Q4, the collector of triode Q4 to be held with adjustable three ADJ rectifying Voltagre regulator LM317 by resistance R58 and is connected, the described adjustable three ADJ ends rectifying Voltagre regulator LM317 lead up to resistance R59 ground connection, lead up to electric capacity C28 ground connection, resistance R60 of separately leading up to holds with adjustable three Vout rectifying Voltagre regulator LM317 and is connected, the described adjustable three Vin ends rectifying Voltagre regulator LM317 are connected with 35V voltage, described adjustable three rectify the Vout end of Voltagre regulator LM317 by electric capacity C24 ground connection, the described adjustable three Vout ends rectifying Voltagre regulator LM317 are connected with industrial instrument bus by resistance R61, described industrial instrument bus is connected with gas meter,
Described gas meter data receiver circuit (3) comprises comparer LM393, diode D4, U7 and electric capacity E6, meter bus (5) is leaded up to resistance R63 and is connected with the input anode of comparer LM393, another road is connected with the positive pole of diode D4, the negative pole of diode D4 is connected with comparer LM393 input cathode by resistance R63, described comparer LM393 input cathode leads up to resistance R65 ground connection, one tunnel is connected with the positive pole of electric capacity E6, the minus earth of described electric capacity E6; Described 35V power supply is connected and ground connection with comparer LM393 by U6B, and the described output terminal of comparer LM393 is connected with the pin two of U7, and is connected with the MCU RXD port of gas meter writing circuit (1) by pin 4; Pin 3 ground connection of described U7, the pin 4 of U7 is connected with 3.3V voltage by resistance R6, and 1 pin of U7 is connected with 12V voltage by resistance R46;
Described power supply (4) is powered to gas meter writing circuit (1), gas meter data transmit circuit (2), gas meter data receiver circuit (3), power supply (4), industrial instrument bus (5) and Wireless Fidelity circuit (6) respectively.
2. according to claim 1 based on the bus-structured gas meter mobile recorder of industrial instrument, it is characterized in that: described gas meter writing circuit (1) is 8 or 16 MCU.
3. according to claim 1 based on the bus-structured gas meter mobile recorder of industrial instrument, it is characterized in that: described power supply (4) is lithium battery group.
4. according to claim 1 based on the bus-structured gas meter mobile recorder of industrial instrument, it is characterized in that: described Wireless Fidelity circuit (6) adopts Wireless Fidelity circuit module USR-WIFI232-G.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411971.0U CN204029147U (en) | 2014-07-24 | 2014-07-24 | Based on the bus-structured gas meter mobile recorder of industrial instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411971.0U CN204029147U (en) | 2014-07-24 | 2014-07-24 | Based on the bus-structured gas meter mobile recorder of industrial instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204029147U true CN204029147U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420411971.0U Expired - Fee Related CN204029147U (en) | 2014-07-24 | 2014-07-24 | Based on the bus-structured gas meter mobile recorder of industrial instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204029147U (en) |
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2014
- 2014-07-24 CN CN201420411971.0U patent/CN204029147U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20150724 |
|
| EXPY | Termination of patent right or utility model |