CN204029137U - Ammeter based on CAMAC meter bus structure moves collection device - Google Patents
Ammeter based on CAMAC meter bus structure moves collection device Download PDFInfo
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- CN204029137U CN204029137U CN201420435430.1U CN201420435430U CN204029137U CN 204029137 U CN204029137 U CN 204029137U CN 201420435430 U CN201420435430 U CN 201420435430U CN 204029137 U CN204029137 U CN 204029137U
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Abstract
The utility model provides a kind of ammeter based on CAMAC meter bus structure to move collection device, comprises ammeter collection circuit, ammeter data transtation mission circuit, ammeter data receiving circuit, power supply, CAMAC meter bus and Wireless Fidelity circuit; Wherein said ammeter is collected circuit and is connected with ammeter data transtation mission circuit, ammeter data receiving circuit, power supply, CAMAC meter bus and Wireless Fidelity circuit respectively; Described ammeter data transtation mission circuit comprises that adjustable three rectify Voltagre regulator LM317 and peripheral circuit thereof; Described ammeter data receiving circuit comprises comparer LM393 and peripheral circuit thereof; Described power supply is collected circuit, ammeter data transtation mission circuit, ammeter data receiving circuit, CAMAC meter bus and Wireless Fidelity circuit supply to ammeter respectively; The utility model moves collects the power supply of device employing lithium battery group, has the features such as easy to carry, data rate is fast, simple in structure, cost is low, installation and maintenance are easy.
Description
Technical field
The utility model relates to electric supply meter status information monitoring field, and specifically a kind of ammeter based on CAMAC meter bus structure moves collection device.
Background technology
At present, most ammeter does not possess the function of data message teletransmission, Utilities Electric Co. wants to obtain user's water information, only take manually regularly to visit and sweep the form of table, the time of so not only checking meter is long, waste of manpower, material resources, and cannot in time the data that collect be stored and be analyzed.
For present situation, some adopt the wire transmission modes such as RS485, MBUS to send the data of ammeter to control center from ammeter company, and manual routing expends a large amount of man power and materials, necessary rewiring when collector need to add new equipment, poor expandability.Because most ammeters are arranged in well or outdoor, there is very large problem in equipment power-extracting.
In order to realize network communication, gather ammeter condition information, proposed the ammeter collector based on MBUS, WIFI circuit and lithium battery power supply.Ammeter is connected with collector through CAMAC bus, and the handheld devices such as mobile phone realize the collection to the ammeter data in MBUS bus by WIFI wireless network.When Utilities Electric Co. checks meter, as long as meter reading software is installed on mobile phone or panel computer, just can realize collection, storage and statistics to ammeter data.This collector has the features such as be convenient for carrying, data rate is fast, simple in structure, cost is low, mobile phone or flat board are checked meter.Suitablely in ammeter power supply facilities, install and use.
Summary of the invention
For above deficiency of the prior art, the purpose of this utility model is to provide a kind of ammeter easy to carry, that data rate is fast, simple in structure, cost is low, installation and maintenance are easy to based on CAMAC meter bus structure to move collection device.For achieving the above object, the technical solution of the utility model is:
Ammeter based on CAMAC meter bus structure moves collection device, and it comprises ammeter collection circuit, ammeter data transtation mission circuit, ammeter data receiving circuit, power supply, CAMAC meter bus and Wireless Fidelity circuit, wherein
Described ammeter is collected circuit and is connected with Wireless Fidelity circuit, ammeter data transtation mission circuit, ammeter data receiving circuit and power supply respectively;
Described ammeter data transtation mission circuit comprises photoisolator U9, triode Q4, adjustable three rectify Voltagre regulator LM317, the MCU TXD port that described ammeter is collected 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 R 32, the pin 4 of described photoisolator U9 is connected with 12V voltage, the pin 3 of described photoisolator I U9 is leaded up to resistance R 47 ground connection, the resistance of separately leading up to is connected with the base stage of triode Q4, the grounded emitter of triode Q4, the ADJ end that the collector of triode Q4 is rectified Voltagre regulator LM317 by resistance R 58 and adjustable three is connected, the described adjustable three ADJ ends of rectifying Voltagre regulator LM317 are leaded up to resistance R 59 ground connection, lead up to capacitor C 28 ground connection, the Vout end that the resistance R 60 and adjustable three of separately leading up to is rectified Voltagre regulator LM317 is connected, the described adjustable three Vin ends of rectifying Voltagre regulator LM317 are connected with 35V voltage, the described adjustable three Vout ends of rectifying Voltagre regulator LM317 are by capacitor C 24 ground connection, the described adjustable three Vout ends of rectifying Voltagre regulator LM317 are connected with CAMAC meter bus by resistance R 61, described CAMAC meter bus is connected with ammeter,
Described ammeter data receiving circuit (3) comprises comparer LM393, diode D4, U7 and electric capacity E6, meter bus is leaded up to resistance R 63 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 R 63, described comparer LM393 input cathode is leaded up to resistance R 65 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 with comparer LM393 by U6B and ground connection, and the output terminal of described comparer LM393 is connected with the pin two of U7, and the MCU RXD port of collecting circuit (1) with ammeter by pin 4 is connected; Pin 3 ground connection of described U7, the pin 4 of U7 is connected with 3.3V voltage by resistance R 6, and 1 pin of U7 is connected with 12V voltage by resistance R 46;
Described power supply is collected circuit, ammeter data transtation mission circuit, ammeter data receiving circuit, power supply, CAMAC meter bus and Wireless Fidelity circuit supply to ammeter respectively.
Further, described ammeter collection 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 are as follows:
This collector adopts ammeter to collect circuit, Wireless Fidelity circuit and CAMAC meter bus bus, has the feature such as be convenient for carrying, data rate is fast, simple in structure, cost is low, mobile phone or flat board are checked meter.Suitablely in ammeter facility, install and use.
accompanying drawing explanation
Figure 1 shows that the ammeter of the utility model preferred embodiment based on CAMAC meter bus structure moves collection device;
Fig. 2 is the utility model preferred embodiment ammeter data transtation mission circuit figure;
Fig. 3 is the utility model preferred embodiment ammeter data receiving circuit figure.
Embodiment
The embodiment that provides an indefiniteness below in conjunction with accompanying drawing is further elaborated the utility model.
Shown in Fig. 1-Fig. 3; Fig. 1 is that a kind of ammeter based on CAMAC meter bus structure moves collection device, it is characterized in that: comprise that ammeter collects circuit 1), ammeter data transtation mission circuit 2, ammeter data receiving circuit 3, power supply 4, CAMAC meter bus 5 and Wireless Fidelity circuit 6; Wherein
Described ammeter is collected circuit 1 and is connected with Wireless Fidelity circuit 6, ammeter data transtation mission circuit 2, ammeter data receiving circuit 3 and power supply 4 respectively;
Described ammeter data transtation mission circuit 2 comprises photoisolator U9, triode Q4, adjustable three rectify Voltagre regulator LM317, the MCU TXD port that described ammeter is collected 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 R 32, the pin 4 of described photoisolator U9 is connected with 12V voltage, the pin 3 of described photoisolator I U9 is leaded up to resistance R 47 ground connection, the resistance of separately leading up to is connected with the base stage of triode Q4, the grounded emitter of triode Q4, the ADJ end that the collector of triode Q4 is rectified Voltagre regulator LM317 by resistance R 58 and adjustable three is connected, the described adjustable three ADJ ends of rectifying Voltagre regulator LM317 are leaded up to resistance R 59 ground connection, lead up to capacitor C 28 ground connection, the Vout end that the resistance R 60 and adjustable three of separately leading up to is rectified Voltagre regulator LM317 is connected, the described adjustable three Vin ends of rectifying Voltagre regulator LM317 are connected with 35V voltage, the described adjustable three Vout ends of rectifying Voltagre regulator LM317 are by capacitor C 24 ground connection, the described adjustable three Vout ends of rectifying Voltagre regulator LM317 are connected with CAMAC meter bus by resistance R 61, described CAMAC meter bus is connected with ammeter,
Described ammeter data receiving circuit 3 comprises comparer LM393, diode D4, U7 and electric capacity E6, meter bus 5 is leaded up to resistance R 63 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 R 63, described comparer LM393 input cathode is leaded up to resistance R 65 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 with comparer LM393 by U6B and ground connection, and the output terminal of described comparer LM393 is connected with the pin two of U7, and the MCU RXD port of collecting circuit 1 with ammeter by pin 4 is connected; Pin 3 ground connection of described U7, the pin 4 of U7 is connected with 3.3V voltage by resistance R 6, and 1 pin of U7 is connected with 12V voltage by resistance R 46;
Described power supply 4 is collected circuit 1, ammeter data transtation mission circuit 2, ammeter data receiving circuit 3, power supply 4, CAMAC meter bus 5 and 6 power supplies of Wireless Fidelity circuit to ammeter respectively.
It is 8 or 16 MCU that described ammeter is collected circuit 1.
Described power supply 4 is lithium battery group.
Described Wireless Fidelity circuit 6 adopts Wireless Fidelity circuit module USR-WIFI232-G.
Sending and receiving principle: CAMAC meter bus main equipment is the mode traffic bit information changing by level to the code stream from equipment, level complies with the following requirements: the voltage of the corresponding 36V of logical one (MARK), when transmitting logical zero (SPACE), the voltage in bus reduces to 24V from 36V.The code stream of CAMAC meter bus from equipment to main equipment is to realize from the electric current of devices consume by modulation, electric current complies with the following requirements: logical one (MARK) represents with the steady current of 1.5mA, and logical zero (SPACE) need be added the electric current of 11-20mA on the basis of 1.5mA.Stationary state on CAMAC meter bus is logical one, and now the voltage on bus driver is 36V, from the quiescent current of equipment, is 1.5mA steady current.When all from equipment not during output logic " 0 ", constant electric current of bus driver output is to drive bus, due to the impedance decay of transmission line, simultaneously according to the distance from equipment and main equipment and from the size of the total quiescent current of equipment, in the virtual voltage outline from equipment end lower than 36V.Therefore from equipment, be to carry out according to the skew of 12V level rather than according to the absolute value of voltage during the code stream on identification bus.Main equipment is to have the increase of 11-20mA to differentiate according to bus current when receiving the SPACE value sending from equipment.Therefore M-Bus at any time the direction of data transmission be unidirectional, from main equipment to from equipment or from from equipment to main equipment, this communication mode has not only been realized the remote power feeding from equipment has also been obtained to the very strong resistivity to external disturbance simultaneously.
Preferably, when mobile phone/panel computer gathers the information of ammeter, the collection control signal that described Wireless Fidelity circuit 6 sends 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, described Acquisition Circuit 1 sends to transtation mission circuit 2 by MCU TXD terminal by collection control signal, 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 ammeter;
The effect of USR-WIFI232-G is exactly a WIFI focus, substantially the same with the effect of wireless router; Its inside, except the physics focus of WIFI, also has a TCP circuit, and IP is 10.10.100.254, port is 8899, mobile phone connects after the WIFI network of upper this phase module, is connected to after TCP circuit, just can realize TCP connection and serial ports data transparent transmission before
Preferably, when ammeter returns to mobile phone/panel computer by information about power by MBUS, described ammeter is connected with receiving circuit 3 through MBUS bus, described receiving circuit 3 is transmitted to information about power signal by comparer LM393 the MCU RXD port of Acquisition Circuit 1, described Acquisition Circuit 1 sends to information about power signal the RXD terminal of WIFI circuit, and sends to mobile phone/panel computer by WIFI antenna.
More preferably, described Acquisition Circuit 1 is 8 or 16 MCU, and preferred, described Acquisition Circuit 1 is single machine unit;
More preferably, described power supply 4 is 14.8V 4400mAH lithium battery group.
In the present embodiment, described ammeter is intelligent electric meter, through MBUS bus, is connected with collector, and the handheld device that mobile phone, iPad etc. has WIFI network is connected to Wireless Fidelity circuit 6 circuit, by cell phone software, obtains ammeter information, realizes radio meter register.
These embodiment are interpreted as only for the utility model is described, being not used in restriction protection domain of the present utility model.After having read the content of record of the present utility model, technician can make various changes or modifications the utility model, and these equivalences change and modification falls into the utility model claim limited range equally.
Claims (4)
1. the ammeter based on CAMAC meter bus structure moves collection device, it is characterized in that: comprise ammeter collection circuit (1), ammeter data transtation mission circuit (2), ammeter data receiving circuit (3), power supply (4), CAMAC meter bus (5) and Wireless Fidelity circuit (6); Wherein
Described ammeter is collected circuit (1) and is connected with Wireless Fidelity circuit (6), ammeter data transtation mission circuit (2), ammeter data receiving circuit (3) and power supply (4) respectively;
Described ammeter data transtation mission circuit (2) comprises photoisolator U9, triode Q4, adjustable three rectify Voltagre regulator LM317, the MCU TXD port that described ammeter is collected 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 R 32, the pin 4 of described photoisolator U9 is connected with 12V voltage, the pin 3 of described photoisolator I U9 is leaded up to resistance R 47 ground connection, the resistance of separately leading up to is connected with the base stage of triode Q4, the grounded emitter of triode Q4, the ADJ end that the collector of triode Q4 is rectified Voltagre regulator LM317 by resistance R 58 and adjustable three is connected, the described adjustable three ADJ ends of rectifying Voltagre regulator LM317 are leaded up to resistance R 59 ground connection, lead up to capacitor C 28 ground connection, the Vout end that the resistance R 60 and adjustable three of separately leading up to is rectified Voltagre regulator LM317 is connected, the described adjustable three Vin ends of rectifying Voltagre regulator LM317 are connected with 35V voltage, the described adjustable three Vout ends of rectifying Voltagre regulator LM317 are by capacitor C 24 ground connection, the described adjustable three Vout ends of rectifying Voltagre regulator LM317 are connected with CAMAC meter bus by resistance R 61, described CAMAC meter bus is connected with ammeter,
Described ammeter data receiving circuit (3) comprises comparer LM393, diode D4, U7 and electric capacity E6, meter bus (5) is leaded up to resistance R 63 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 R 63, described comparer LM393 input cathode is leaded up to resistance R 65 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 with comparer LM393 by U6B and ground connection, and the output terminal of described comparer LM393 is connected with the pin two of U7, and the MCU RXD port of collecting circuit (1) with ammeter by pin 4 is connected; Pin 3 ground connection of described U7, the pin 4 of U7 is connected with 3.3V voltage by resistance R 6, and 1 pin of U7 is connected with 12V voltage by resistance R 46;
Described power supply (4) is collected circuit (1), ammeter data transtation mission circuit (2), ammeter data receiving circuit (3), power supply (4), CAMAC meter bus (5) and Wireless Fidelity circuit (6) power supply to ammeter respectively.
2. the ammeter based on CAMAC meter bus structure according to claim 1 moves collection device, it is characterized in that: it is 8 or 16 MCU that described ammeter is collected circuit (1).
3. the ammeter based on CAMAC meter bus structure according to claim 1 moves collection device, it is characterized in that: described power supply (4) is lithium battery group.
4. the ammeter based on CAMAC meter bus structure according to claim 1 moves collection device, 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 |
|---|---|---|---|
| CN201420435430.1U CN204029137U (en) | 2014-08-04 | 2014-08-04 | Ammeter based on CAMAC meter bus structure moves collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435430.1U CN204029137U (en) | 2014-08-04 | 2014-08-04 | Ammeter based on CAMAC meter bus structure moves collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204029137U true CN204029137U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420435430.1U Expired - Fee Related CN204029137U (en) | 2014-08-04 | 2014-08-04 | Ammeter based on CAMAC meter bus structure moves collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204029137U (en) |
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2014
- 2014-08-04 CN CN201420435430.1U patent/CN204029137U/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: 20150804 |
|
| EXPY | Termination of patent right or utility model |