CN201498079U - Power supply controller of fire alarm system - Google Patents
Power supply controller of fire alarm system Download PDFInfo
- Publication number
- CN201498079U CN201498079U CN2009202313240U CN200920231324U CN201498079U CN 201498079 U CN201498079 U CN 201498079U CN 2009202313240 U CN2009202313240 U CN 2009202313240U CN 200920231324 U CN200920231324 U CN 200920231324U CN 201498079 U CN201498079 U CN 201498079U
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- China
- Prior art keywords
- power supply
- microprocessor chip
- alarm system
- fire alarm
- drive circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a power supply controller of a fire alarm system, which comprises a power supply conversion device, a microprocessor chip, a host computer, a communication drive circuit, a power supply on/off control circuit and a DC/DC isolation circuit. The output of the power supply conversion device is connected with the microprocessor chip, the power supply on/off control circuit and the communication drive circuit, the DC/DC isolation circuit is connected between the power supply conversion device and the communication drive circuit, the communication drive circuit is connected between the host computer and the microprocessor chip, and the output of the microprocessor chip is connected with the input of the power supply on/off control circuit. The utility model is mainly applied in the power supply control of the hardware equipment in the fire alarm system, and can convenient control the on/off state of the power supply according to the needs of the user. The user can issue corresponding commands to the power supply controller through the host computer prior to the reliable implementation of the corresponding operation. All the equipment is controlled in a concentrated way, and the user is not required to go to the site. Moreover, the utility model has the advantages of simple circuit, small size and easy installation.
Description
Technical field
The utility model relates to the power supply control technology, is specially a kind of power-supply controller of electric of fire alarm system.
Background technology
The hardware device of fire alarm system will just can move under power supply state, and the power source voltage type of every kind of equipment and grade is also different, the fire alarm system hardware device comprises video camera, The Cloud Terrace, guard shield, temperature controller, industrial computer, demoder reaches relevant communication apparatus etc., which equipment will move always in the process that monitors fire, which equipment will just move after monitoring fire, the power supply of some equipment of operation before perhaps disconnecting, these problems are to want us to consider, because equipment is numerous, the position disperses, pure by manually controlling, careless omission makes mistakes easily, needs a kind of device of centralized control on/off automatically.
Summary of the invention
Problem to be solved in the utility model is: the hardware device of fire alarm system needs the device of its each several part on/off of control that can concentrate automatically.
Even scheme of the present utility model is: the power-supply controller of electric of fire alarm system, comprise power supply change-over device, microprocessor chip, host computer, communication drive circuit, the on/off control loop, the DC/DC buffer circuit, the output connecting microprocessor chip of power supply change-over device, on/off control loop and communication drive circuit, between being connected of power supply change-over device and communication drive circuit the DC/DC buffer circuit is set, between being connected of host computer and microprocessor chip communication drive circuit is set, the output of microprocessor chip connects the input of on/off control loop.
Microprocessor chip is a programmable logic device (PLD).
Communication drive circuit comprises communication drivers chip and photoisolator, is provided with the RS232 communication interface, and photoisolator was arranged between being connected of communication drivers chip and microprocessor chip.
The on/off control loop is made up of two kinds of relays of alternating current-direct current.
The utility model mainly is the power supply control that is used for the fire alarm system hardware device, advantage is: the on-off that can control power supply according to user's needs easily, the user only needs to send out order by host computer corresponding to power-supply controller of electric can carry out corresponding operation reliably, the all devices centralized control need not the scene; Power controller circuit of the present utility model is simple, and volume is urinated in installation.
Description of drawings
Fig. 1 is a structural principle block diagram of the present utility model.
Fig. 2 is the utility model microprocessor work circuit diagram.
Fig. 3 is the utility model communication driving circuit.
Fig. 4 is the utility model DC/DC buffer circuit.
Fig. 5 is the utility model on/off control loop.
Embodiment
With concrete embodiment principle of work of the present invention is described once with reference to the accompanying drawings below.
Fig. 1 is a structural principle block diagram of the present utility model, comprise power supply change-over device, microprocessor chip, host computer, communication drive circuit, on/off control loop, DC/DC buffer circuit, the output connecting microprocessor chip of power supply change-over device, on/off control loop and communication drive circuit, between being connected of power supply change-over device and communication drive circuit the DC/DC buffer circuit is set, between being connected of host computer and microprocessor chip communication drive circuit is set, the output of microprocessor chip connects the input of on/off control loop.
Power supply change-over device is exactly that the AC power that will import converts the power supply that power-supply controller of electric will be used to.The power supply change-over device input is that 220V exchanges, after conversion, obtain 12V DC and 5V DC power supply each one the tunnel, wherein the 5V power supply is to microprocessor chip D1, DC/DC isolator D11, photoisolator D19, the D20 of communication driving circuit, logic gate D2A, D2B power supply, 12V is used for some power devices of fire alarm system.
Communication driving circuit of the present utility model is exactly for the incompatible problem of the level that solves host computer and microprocessor chip.
The DC/DC buffer circuit is in order to solve the problem that the photoisolator two ends must isolate power supply.
The on/off control loop is by the on/off of the closing of relay relevant contacts/incompatible realization fire alarm system relevant device power supply.
Fig. 2 is the working circuit diagram of little process chip part, comprises microprocessor chip D1, logic gate D2A, resistance R 1, R134, R206, capacitor C 1～C4, electrochemical capacitor C14, crystal oscillator G1, light emitting diode V1, V2 and jtag interface.
8 single chip computer AT mega16-16AI of a AVR series that little process chip adopts, the reset pin RSESET of little process chip connects be one by resistance R 1, R134, the typical reset circuit that light emitting diode V2 and capacitor C 1 constitute.PD0, PD1 connect the sending and receiving pin of the RS232 communication interface of news driving circuit respectively.PA1～PA6 directly controls the closure of 6 relay corresponding contacts of on/off control loop as delivery outlet.PC2～PC5 is as jtag interface debugging usefulness.PA0 is used to light light emitting diode V1.
Fig. 3 is the circuit diagram of communication driving circuit, is connected with little process chip with TXD by the sending and receiving pin RXD of RS232 communication interface, and it comprises communication chip for driving D17, photoisolator D19 and D20, logic gate D2B, resistance R 4, R209, R119, R220, capacitor C 10, C99.When from the host computer received signal, because the signal level that this signal and microprocessor chip D1 can receive is incompatible, must be converted to the level of compatibility with it through level transferring chip D17, after having discerned the signal that receives, microprocessor will be transferred to the corresponding work state automatically, thereby realizes the communication between host computer and the microprocessor chip D1; When needs were inquired about the duty of power-supply controller of electric, just microprocessor was to the host computer number of delivering a letter, and the principle of its principle and host computer received signal is opposite.
Fig. 4 is the circuit diagram of DC/DC buffer circuit, and it comprises dc isolator D11, electrochemical capacitor C156, C157, capacitor C 210, C211, resistance R 309.Because the photoisolator two ends in the communication driving circuit must separately power and just can play jamproof effect, therefore the 5V power supply of power supply change-over device output is handled through dc isolator, the power supply 5V of output can be used as light every other end power supply.
Fig. 5 is the circuit diagram of on/off control loop, and it comprises DC relay RL1～RL3, AC relay RL4～RL6, current limliting diode V3, V5, V8, V10, V12, V14, triode V4, V6, V7, V9, V11, V13, resistance R 5～R10.The closure signal of relay contact is provided by microprocessor chip D1.The closure of pilot relay contact easily according to actual needs, thus reach the break-make of control relevant device power supply.
The level signal that host computer sends host computer through the communication driving circuit converts the level compatible mutually with little process chip to, the order of sending out above-mentioned after little process chip received signal realizes corresponding on/off, and the break-make situation of inquiring about each road power supply, the corresponding relation of mode bit is as shown in table 1.
Claims (5)
1. the power-supply controller of electric of fire alarm system, it is characterized in that comprising power supply change-over device, microprocessor chip, host computer, communication drive circuit, on/off control loop, DC/DC buffer circuit, the output connecting microprocessor chip of power supply change-over device, on/off control loop and communication drive circuit, between being connected of power supply change-over device and communication drive circuit the DC/DC buffer circuit is set, between being connected of host computer and microprocessor chip communication drive circuit is set, the output of microprocessor chip connects the input of on/off control loop.
2. the power-supply controller of electric of fire alarm system according to claim 1 is characterized in that microprocessor chip is a programmable logic device (PLD).
3. the power-supply controller of electric of fire alarm system according to claim 1 and 2, it is characterized in that communication drive circuit comprises communication drivers chip and photoisolator, be provided with the RS232 communication interface, photoisolator was arranged between being connected of communication drivers chip and microprocessor chip.
4. the power-supply controller of electric of fire alarm system according to claim 1 and 2 is characterized in that the on/off control loop is made up of two kinds of relays of alternating current-direct current.
5. the power-supply controller of electric of fire alarm system according to claim 3 is characterized in that the on/off control loop is made up of two kinds of relays of alternating current-direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202313240U CN201498079U (en) | 2009-08-21 | 2009-08-21 | Power supply controller of fire alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202313240U CN201498079U (en) | 2009-08-21 | 2009-08-21 | Power supply controller of fire alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201498079U true CN201498079U (en) | 2010-06-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202313240U Expired - Fee Related CN201498079U (en) | 2009-08-21 | 2009-08-21 | Power supply controller of fire alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201498079U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995493A (en) * | 2014-05-19 | 2014-08-20 | 中国电子科技集团公司第四十五研究所 | Programmable logic power source controller |
| CN105069973A (en) * | 2015-09-03 | 2015-11-18 | 湖南城市学院 | Vehicle-mounted life protection device |
-
2009
- 2009-08-21 CN CN2009202313240U patent/CN201498079U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995493A (en) * | 2014-05-19 | 2014-08-20 | 中国电子科技集团公司第四十五研究所 | Programmable logic power source controller |
| CN105069973A (en) * | 2015-09-03 | 2015-11-18 | 湖南城市学院 | Vehicle-mounted life protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20120821 |