CN204408003U - Remote-control intelligent gas meter concentrator power supply detects and commutation circuit in real time - Google Patents
Remote-control intelligent gas meter concentrator power supply detects and commutation circuit in real time Download PDFInfo
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- CN204408003U CN204408003U CN201520075389.6U CN201520075389U CN204408003U CN 204408003 U CN204408003 U CN 204408003U CN 201520075389 U CN201520075389 U CN 201520075389U CN 204408003 U CN204408003 U CN 204408003U
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Abstract
The utility model discloses a kind of remote-control intelligent gas meter concentrator power supply to detect in real time and commutation circuit, it comprises automatic voltage and detects and commutation circuit, main power voltage testing circuit, backup power source voltage testing circuit, first reverse cut-off circuit, second reverse cut-off circuit and main control MCU, described automatic voltage detects with two outputs of commutation circuit that cut-off circuit reverse with second and backup power source voltage testing circuit are connected respectively, outside main power source is connected with main power voltage testing circuit and the first reverse cut-off circuit respectively, main power voltage testing circuit, first reverse cut-off circuit, second reverse cut-off circuit is all connected with main control MCU with the output of backup power source voltage testing circuit.The utility model realizes the confession electro-detection of main power source and stand-by power supply, realize hardware seamless switching, and by main power source and backup power source voltage testing circuit, detect power supply circuits state in real time and by its state of main control MCU active reporting, realize device security and power.
Description
Technical field
The utility model relates to a kind of remote-control intelligent gas meter concentrator power supply and detects in real time and commutation circuit.
Background technology
Concentrator (concentrator device) is the central connection point equipment connecting terminal, computer or communication equipment.In some terminal compact districts, be generally minimizing communication line, first terminal received concentrator, and then concentrator is connected to the communication controler of computer through high-speed line, therefore, concentrator is also share wires and the effective equipment of one improving line efficiency.But the existing concentrator for remote-control intelligent gas meter, not there is the function of stand-by power supply; Even if there is the function of stand-by power supply can not realize the seamless switching of hardware, and can not accomplish to monitor in real time the state of power supply circuits.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of remote-control intelligent gas meter concentrator power supply to detect in real time and commutation circuit, has the advantage of fast, seamless delay switching time.
The purpose of this utility model is achieved through the following technical solutions: remote-control intelligent gas meter concentrator power supply detects and commutation circuit in real time, it comprises automatic voltage and detects and commutation circuit, main power voltage testing circuit, backup power source voltage testing circuit, first reverse cut-off circuit, second reverse cut-off circuit and main control MCU, described automatic voltage detects and is connected with outside main power source and outside stand-by power supply respectively with two inputs of commutation circuit, described automatic voltage detects with two outputs of commutation circuit that cut-off circuit reverse with second and backup power source voltage testing circuit are connected respectively, outside main power source is also connected with main power voltage testing circuit and the first reverse cut-off circuit respectively, main power voltage testing circuit, first reverse cut-off circuit, second reverse cut-off circuit is all connected with main control MCU with the output of backup power source voltage testing circuit, the output of the first reverse cut-off circuit and the second reverse cut-off circuit also exports for power supply.
The model of described main control MCU is MSP430.
Described outside stand-by power supply is dry cell.
The beneficial effects of the utility model are: (1) the utility model detects the confession electro-detection realizing main power source and stand-by power supply with commutation circuit by automatic voltage, realize hardware seamless switching, have the advantage of fast, seamless delay switching time; (2) the utility model is by main power source and backup power source voltage testing circuit, detects power supply circuits state in real time and by its state of main control MCU active reporting, realizes device security and power.
Accompanying drawing explanation
Fig. 1 is the utility model block diagram.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail: as shown in Figure 1, remote-control intelligent gas meter concentrator power supply detects and commutation circuit in real time, it comprises automatic voltage and detects and commutation circuit, main power voltage testing circuit, backup power source voltage testing circuit, first reverse cut-off circuit, second reverse cut-off circuit and main control MCU, described automatic voltage detects and is connected with outside main power source and outside stand-by power supply respectively with two inputs of commutation circuit, described automatic voltage detects with two outputs of commutation circuit that cut-off circuit reverse with second and backup power source voltage testing circuit are connected respectively, outside main power source is also connected with main power voltage testing circuit and the first reverse cut-off circuit respectively, main power voltage testing circuit, first reverse cut-off circuit, second reverse cut-off circuit is all connected with main control MCU with the output of backup power source voltage testing circuit, the output of the first reverse cut-off circuit and the second reverse cut-off circuit also exports for power supply.
Described automatic voltage detects with commutation circuit for detecting the voltage of main power source and stand-by power supply, and selects power supply according to voltage condition: when main power source has electricity, automatically switch to main power source and power; Automatically switch to stand-by power supply when main power source power down to power; When main power source powers on, automatically switch to main power source and power.
Described main power voltage testing circuit and stand-by power supply testing circuit are respectively used to the voltage on the power supply circuits of detection main power source and stand-by power supply and are transferred to main control MCU.
The main power voltage detection signal that described main control MCU sends according to main power voltage testing circuit and the backup power source voltage detection signal that backup power source voltage testing circuit sends, provide the instruction of current power supply circuits operating state:
(1) when detect be main power source power time, if the voltage that backup power source voltage testing circuit exports is close with the voltage that main power voltage testing circuit exports, the situation that main power source is powered to stand-by power supply can be caused, then the second reverse cut-off circuit is abnormal, and MCU provides the second anti-phase throttle circuit abnormal operation instruction;
(2) when detect be main power source power time, if the voltage that backup power source voltage testing circuit exports is that stand-by power supply normally detects voltage, then automatic voltage detects with commutation circuit abnormal, and MCU provides automatic voltage detection and indicates with commutation circuit abnormal operation;
(3) when stand-by power supply is powered upon this detection, if detect that the voltage that main power voltage testing circuit exports is close with the voltage that backup power source voltage testing circuit exports, the situation that stand-by power supply is powered to main power source can be caused, then the first reverse cut-off circuit is abnormal, and MCU provides the first reverse cut-off circuit abnormal operation instruction.
The model of described main control MCU is MSP430.
Described outside stand-by power supply is dry cell.
Claims (3)
1. remote-control intelligent gas meter concentrator power supply detects and commutation circuit in real time, it is characterized in that: it comprises automatic voltage and detects and commutation circuit, main power voltage testing circuit, backup power source voltage testing circuit, first reverse cut-off circuit, second reverse cut-off circuit and main control MCU, described automatic voltage detects and is connected with outside main power source and outside stand-by power supply respectively with two inputs of commutation circuit, described automatic voltage detects with two outputs of commutation circuit that cut-off circuit reverse with second and backup power source voltage testing circuit are connected respectively, outside main power source is also connected with main power voltage testing circuit and the first reverse cut-off circuit respectively, main power voltage testing circuit, first reverse cut-off circuit, second reverse cut-off circuit is all connected with main control MCU with the output of backup power source voltage testing circuit, the output of the first reverse cut-off circuit and the second reverse cut-off circuit also exports for power supply, described main control MCU is also connected with operate outside monitoring module.
2. remote-control intelligent gas meter concentrator power supply according to claim 1 detects and commutation circuit in real time, it is characterized in that: the model of described main control MCU is MSP430.
3. remote-control intelligent gas meter concentrator power supply according to claim 1 detects and commutation circuit in real time, it is characterized in that: described outside stand-by power supply is dry cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075389.6U CN204408003U (en) | 2015-02-03 | 2015-02-03 | Remote-control intelligent gas meter concentrator power supply detects and commutation circuit in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075389.6U CN204408003U (en) | 2015-02-03 | 2015-02-03 | Remote-control intelligent gas meter concentrator power supply detects and commutation circuit in real time |
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| Publication Number | Publication Date |
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| CN204408003U true CN204408003U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520075389.6U Active CN204408003U (en) | 2015-02-03 | 2015-02-03 | Remote-control intelligent gas meter concentrator power supply detects and commutation circuit in real time |
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| CN (1) | CN204408003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638758A (en) * | 2015-02-03 | 2015-05-20 | 成都秦川科技发展有限公司 | Real-time detection and switching circuit for power supply of remote control intelligent gas meter concentrator |
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2015
- 2015-02-03 CN CN201520075389.6U patent/CN204408003U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638758A (en) * | 2015-02-03 | 2015-05-20 | 成都秦川科技发展有限公司 | Real-time detection and switching circuit for power supply of remote control intelligent gas meter concentrator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610199 Longquanyi, Sichuan Province Industrial Park licensing Patentee after: Chengdu Qinchuan networking Polytron Technologies Inc Address before: 610199 Longquanyi, Sichuan Province Industrial Park licensing Patentee before: Chengdu Taichuan Technology Development Co., Ltd. |