CN201149721Y - Connection structure for straightline control disk in fire disaster warning system - Google Patents
Connection structure for straightline control disk in fire disaster warning system Download PDFInfo
- Publication number
- CN201149721Y CN201149721Y CNU2008200282239U CN200820028223U CN201149721Y CN 201149721 Y CN201149721 Y CN 201149721Y CN U2008200282239 U CNU2008200282239 U CN U2008200282239U CN 200820028223 U CN200820028223 U CN 200820028223U CN 201149721 Y CN201149721 Y CN 201149721Y
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- voltage
- console panel
- straight line
- control panel
- linear control
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Abstract
The utility model provides a wiring structure of a linear control panel in the fire alarm system; two output control lines of the linear control panel OUT+ and OUT- are connected with an intermediate relay JO; the normally open constant of the intermediate relay JO is directly connected with an external device; one end of the operation feedback signal (passive normally open stem contact) of the external device is connected with the OUT-; the other end is connected with the OUT+ through a 1k/1w resistor; other ends of the OUT+ and the OUT- are connected with the output end of the linear control panel; the linear control panel processes the signals through the inner resistor network and the anti-interference network, and then transmits the signals to the AD testing end of the MCU; the MCU detects the voltage variable value of the AD end so that the situations of operation feedback, failure feedback, connecting line open circuit and connecting line short circuit found in the site device can be judged. The wiring structure solves the defects of complicated wring in the engineering construction and high construction cost.
Description
Technical field
The utility model relates to the wiring construction of fire alarm system cathetus console panel and external unit.
Background technology
The act.std GB4717-2005 of China, GB16806-2006 regulation outside the automatic control of the important fire fighting equipment decapacitation of buildings, also wants directly to control by straight line in the pulpit start and stop of on-the-spot fire fighting equipment.This straight line opertaing device is defined as the straight line console panel.Straight line control mode in the industry needs 3 to 5 lines could realize the start-up control to on-the-spot fire fighting equipment, the operation feedback signal and the fault feedback signal of receiving equipment now, has directly increased the material cost and the construction cost of project.
Summary of the invention
The purpose of this utility model is the shortcoming that overcomes prior art, and a kind of two-wire system wiring construction of fire alarm system cathetus console panel is provided, and this wiring construction has solved wiring complexity in the engineering construction, the drawback that construction cost is high.
The technical solution of the utility model is the wiring construction of fire alarm system cathetus console panel, it is characterized in that straight line console panel to the line of equipment only needs two lines, two output control line OUT+ are connected with auxiliary reclay JI with OUT-, the normally opened contact of auxiliary reclay JI, directly be connected start and stop with the control external unit with external unit, the operation feedback signal of external unit (the passive dry contact of often an opening) termination OUT-, the other end is connected to OUT+ by the resistance of a 1K/1W.
If external unit also needs the fault detection capability of equipment, then only the normally closed contact that the fault of field apparatus is fed back need be serially connected between OUT+ and the relay and can realize the fault feedback function.The other end of OUT+, OUT-is connected to the output terminal of straight line console panel, the straight line console panel by inside resistor network and anti-interference network processes after give AD test side among the MCU of straight line console panel, MCU is by detecting the voltage change of AD end, i.e. situations such as the operation feedback of decidable field apparatus, fault feedback, line open circuit, line short circuit.
This wiring construction has solved wiring complexity in the engineering construction, the drawback that construction cost is high.
Description of drawings
Fig. 1 is the utility model external cabling synoptic diagram.
Fig. 2 is inner collection of straight line console panel and control circuit schematic diagram.
Fig. 3 is not adhesive situation of relay J I circuit theory diagrams.
Embodiment
Realize that by two lines control is exported, the mode of connection of the monitoring function of operation feedback signal, fault feedback signal and the line fault of receiving equipment is the distinctive mode of connection of Te Feier electronics independent research.Its external cabling is as shown in Figure 1:
Adhesive and the disconnection of two output control line OUT+ and OUT-control auxiliary reclay JO by the straight line console panel, starting relay JL by auxiliary reclay JO control external unit moves to control the start and stop of external unit, the 1K feedback resistance that normally opened contact by starting relay behind the device start connects feeds back to the straight line console panel with the startup situation of external unit, and the voltage that the straight line console panel is gathered OUT+ realizes monitoring the purpose of external device start situation and line fault.
The straight line console panel is inner gather and the control circuit schematic diagram as shown in Figure 2:
Auxiliary reclay JO coil resistance generally allows at 650 ohm of left and right sides auxiliary reclays.Be used to control the action of internal relay JI at the C_OUT of straight line console panel MCU, the action of JI control auxiliary reclay JO, AD1 is used to detect the line voltage distribution of OUT+, to monitor the operating state of straight line console panel outside line situation and equipment.
Below at the adhesive of straight line console panel internal relay JI with disconnect the district and be illustrated in two kinds of situation.
Not adhesive situation of relay J I is as shown in Figure 2:
1, under the normal condition, when C_OUT is output as logical one, relay J I is adhesive not, at this moment: R1, R3, R2, R5 has constituted one road 5V and has detected the loop, not adhesive of auxiliary reclay JO, OUT+ is equivalent to one 650 Ohmage and R3 to signal ground resistance, R2, the resistor network that R5 constitutes, can calculate OUT+ thus at the internal relay JI magnitude of voltage during adhesive not, according to the dividing potential drop formula, magnitude of voltage=5* of OUT+ ((R2+R3+R5) // 650)/(R1+ (R2+R3+R5) // 650), can draw thus AD1 internal relay JI not the magnitude of voltage during adhesive be AD1=(OUT+) * (R2+R5)/(R2+R3+R5).
2, (OUT+ and auxiliary reclay JO disconnect) under the line broken circuit situation, the voltage of OUT+ can change, and the voltage that corresponding straight line console panel is gathered AD1 also can change.OUT+ is at the internal relay JI magnitude of voltage during adhesive not, according to the dividing potential drop formula, magnitude of voltage=5* of OUT+ (R2+R3+R5)/(R1+R2+R3+R5), can draw thus AD1 internal relay JI not the magnitude of voltage during adhesive be AD1=(OUT+) * (R2+R5)/(R2+R3+R5).The voltage of OUT+ is different under the voltage that this shows OUT+ under the line broken circuit situation and the normal condition, so AD1 voltage is also different under the voltage of straight line console panel microprocessor AD1 and the normal condition, thus difference normal condition and line broken circuit situation.
3, (OUT+ and OUT-short circuit) under the line short situation, the voltage of OUT+ can change, and the voltage that corresponding straight line console panel is gathered AD1 also can change.OUT+ can draw AD1=0V thus at the internal relay JI magnitude of voltage=0V during adhesive not.The voltage of OUT+ is different under the voltage that this shows OUT+ under the line short situation and the normal condition and under the open circuit conditions, therefore AD1 voltage is also different under the voltage of straight line console panel microprocessor AD1 and the normal condition and under the open circuit conditions, thus differentiation normal condition, open circuit conditions and short-circuit conditions.
Relay J I adhesive situation is as shown in Figure 3:
1, under the normal condition, when C_OUT is output as logical zero, relay J I adhesive, at this moment: R4, R3, R2 has constituted one road 24V and has detected the loop, auxiliary reclay JO adhesive, this moment OUT+ that signal ground resistance is equivalent to one 650 Ohmage is in parallel with feedback resistance RH in parallel with (R3+R2) again, can calculate the magnitude of voltage of OUT+ when internal relay JI adhesive thus, according to the dividing potential drop formula, magnitude of voltage=24* of OUT+ ((R2+R3) // 650//RH)/(R2+R3) // 650//RH+R4), can draw thus AD1 internal relay JI not the magnitude of voltage during adhesive be AD1=(OUT+) * R2/ (R2+R3).
2, (OUT+ and auxiliary reclay JO disconnect) under the line broken circuit situation, the voltage of OUT+ can change, and the voltage that corresponding straight line console panel is gathered AD1 also can change.The magnitude of voltage of OUT+ when internal relay JI adhesive, according to the dividing potential drop formula, can draw the magnitude of voltage of AD1 when internal relay JI adhesive thus is AD1=24*R2/ (R4+R3+R2).The voltage that this shows straight line console panel microprocessor AD1 under the line broken circuit situation is different with AD1 voltage under the normal condition, thus difference normal condition and line broken circuit situation.
3, (OUT+ and OUT-short circuit) under the line short situation, the voltage of OUT+ can change, and the voltage that corresponding straight line console panel is gathered AD1 also can change.Magnitude of voltage=the 0V of OUT+ when internal relay JI adhesive can draw AD1=0V thus.The voltage of OUT+ is different under the voltage that this shows OUT+ under the line short situation and the normal condition and under the open circuit conditions, therefore AD1 voltage is also different under the voltage of straight line console panel microprocessor AD1 and the normal condition and under the open circuit conditions, thereby distinguishes short-circuit conditions and normal condition and line broken circuit situation.
4, circuit feeds back situation (the internal relay adhesive of breaking down, but auxiliary reclay is adhesive not), when the internal relay adhesive, but auxiliary reclay is not during adhesive, the coil resistance that is equivalent to have only 650 ohm of JO relays between outside OUT+ of straight line console panel and the OUT-, not in parallel with feedback resistance RH, this moment, the voltage of OUT+ was: (OUT+)=24* (650//(R3+R2))/(R4+ (650//(R3+R2))), this moment, the voltage of AD1 was: AD1=(OUT+) * R2/ (R2+R3).
By above analysis to JI adhesive of straight line console panel internal relay and disconnection, as can be seen, straight line control output is the mode of connection that can realize all functions of control output, feedback line fault by two lines.
Claims (1)
1, the wiring construction of fire alarm system cathetus console panel, two output control line OUT+ that it is characterized in that the straight line console panel are connected with auxiliary reclay JO with OUT-, the normally opened contact of auxiliary reclay JO directly is connected with external unit, the passive dry contact one termination OUT-that often opens, the other end is connected to OUT+ by the resistance of a 1K/1W, and the other end of OUT+, OUT-is connected to the output terminal of straight line console panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200282239U CN201149721Y (en) | 2008-01-29 | 2008-01-29 | Connection structure for straightline control disk in fire disaster warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200282239U CN201149721Y (en) | 2008-01-29 | 2008-01-29 | Connection structure for straightline control disk in fire disaster warning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149721Y true CN201149721Y (en) | 2008-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200282239U Expired - Fee Related CN201149721Y (en) | 2008-01-29 | 2008-01-29 | Connection structure for straightline control disk in fire disaster warning system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201149721Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103955161A (en) * | 2014-05-14 | 2014-07-30 | 华为技术有限公司 | Monitoring circuit and electronic device |
-
2008
- 2008-01-29 CN CNU2008200282239U patent/CN201149721Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103955161A (en) * | 2014-05-14 | 2014-07-30 | 华为技术有限公司 | Monitoring circuit and electronic device |
| WO2015172502A1 (en) * | 2014-05-14 | 2015-11-19 | 华为技术有限公司 | Monitoring circuit and electronic device |
| CN103955161B (en) * | 2014-05-14 | 2016-12-07 | 华为技术有限公司 | A kind of supervisory circuit and electronic equipment |
| JP2017516275A (en) * | 2014-05-14 | 2017-06-15 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Monitoring circuit and electronic device |
| US10135238B2 (en) | 2014-05-14 | 2018-11-20 | Huawei Technologies Co., Ltd. | Monitoring circuit and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tyco safety equipment (Shanghai) Co., Ltd. Assignor: Xi`an Tamefire Co., Ltd. Contract record no.: 2011990000821 Denomination of utility model: Connection structure for straightline control disk in fire disaster warning system Granted publication date: 20081112 License type: Common License Record date: 20110825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20160129 |
|
| EXPY | Termination of patent right or utility model |