CN207380596U - A kind of bus anti-jamming circuit based on fire-fighting user information transmitting device - Google Patents
A kind of bus anti-jamming circuit based on fire-fighting user information transmitting device Download PDFInfo
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- CN207380596U CN207380596U CN201721477146.0U CN201721477146U CN207380596U CN 207380596 U CN207380596 U CN 207380596U CN 201721477146 U CN201721477146 U CN 201721477146U CN 207380596 U CN207380596 U CN 207380596U
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- bus
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- fire
- user information
- high voltage
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Abstract
The utility model discloses a kind of bus anti-jamming circuit based on fire-fighting user information transmitting device, including the high voltage tong seat circuit being connected between adjacent bus and low pressure clamper sub-circuit, anti-high voltage surge device is provided in the bus between high voltage tong seat circuit and low pressure clamper sub-circuit.The beneficial effects of the utility model are mainly reflected in：High voltage tong seat circuit can effectively limit the scope of voltage with low pressure clamper sub-circuit, and can obtain one has stable input voltage range, while can meet specific voltage requirements；The generation of high voltage surge can effectively be placed and effectively inhibit the generation of high-frequency impulse interference signal.
Description
Technical field
The utility model is related to communicate, the fields such as management of fire safety more particularly to a kind of fire-fighting user information transmission dress
The bus anti-jamming circuit put.
Background technology
In wisdom fire-fighting system, in order to comprehensively carry out fire fighting monitoring, generally require to access various types of disappear
Anti- data acquisition equipment, such as the Internet of Things fire fighting monitoring node of the information such as hydraulic pressure, current or other examples can be gathered
Fire-fighting equipment of cigarette temperature-sensitive sense parameter etc. can such as be gathered.Some occasions, due to the production of these fire-fighting data acquisition equipments
Producer is different, and the fire-fighting data of acquisition can be uploaded with respective data protocol.If all fire fighting monitoring equipment is direct
Data are sent to cloud server, not only need to parse the data protocol of a variety of different fire-fighting equipments simultaneously, and to its network
Larger pressure is will also result in, is unfavorable for the stability of system, therefore can generally use a kind of fire-fighting user information transmitting device,
It solves the problems, such as that fire-fighting data upload mutually ununified, to reduce the pressure of the data processing of fire-fighting data center, keeps system
Stabilization.
Fieldbus transmission technology is a kind of industry data bus developed rapidly in recent years, it mainly solves industry
Digital communication and these field controls between the field devices such as intelligent instrumentation, controller, the executing agency at scene are set
The standby information problem of transmission between advanced control system (ACS).Due to a series of protrusions such as fieldbus is simple, reliable, economical and practical
The advantages of, thus receive the great attention of many standards bodies and computer vendors.But existing fire-fighting user information passes
The bussing technique of defeated device is inevitably present the problem of interfering with each other.
Utility model content
The purpose of the utility model is to overcome the shortcomings of the prior art, provide a kind of fire-fighting user information transmitting device
Bus anti-jamming circuit.
The purpose of this utility model is achieved through the following technical solutions：
A kind of bus anti-jamming circuit based on fire-fighting user information transmitting device, including being connected between adjacent bus
High voltage tong seat circuit and low pressure clamper sub-circuit, the bus between high voltage tong seat circuit and low pressure clamper sub-circuit
On be provided with anti-high voltage surge device.
Preferably, high voltage tong seat circuit includes two lines being oppositely arranged high pressure clamp diode over the ground, defeated
Enter end to connect with corresponding bus respectively, output head grounding.
Preferably, high voltage tong seat circuit further includes two pole of Line To Line high pressure clamper being arranged between adjacent bus
Pipe.
Preferably, the low pressure clamper sub-circuit includes two lines being oppositely arranged low pressure clamp diode over the ground, defeated
Enter end to connect with corresponding bus respectively, output head grounding.
Preferably, the low pressure clamper sub-circuit further includes two pole of Line To Line low pressure clamper being arranged between adjacent bus
Pipe.
Preferably, the anti-high voltage surge device is resettable fuse.
Preferably, the output terminal of the adjacent bus is respectively provided with an inductance, passes through the inductance and the fire-fighting user information
The signal processing chip circuit communication of transmitting device.
The beneficial effects of the utility model are mainly reflected in：High voltage tong seat circuit can be effective with low pressure clamper sub-circuit
Ground limits the scope of voltage, and can obtain one has stable input voltage range, while can meet specific voltage requirements；
The generation of high voltage surge can effectively be placed and effectively inhibit the generation of high-frequency impulse interference signal.
Description of the drawings
Technical solutions of the utility model are described further below in conjunction with the accompanying drawings：
Fig. 1：The schematic diagram of the utility model.
Specific embodiment
The utility model is described in detail below with reference to specific embodiment shown in the drawings.But these embodiment party
Formula is not limited to the utility model, structure that those of ordinary skill in the art are made according to these embodiments, method or
Conversion functionally is all contained in the scope of protection of the utility model.
As shown in Figure 1, the utility model discloses a kind of anti-interference electricity of bus based on fire-fighting user information transmitting device
Road, including the high voltage tong seat circuit being connected between adjacent bus and low pressure clamper sub-circuit, the high voltage tong seat electricity
Anti- high voltage surge device is provided in bus between road and low pressure clamper sub-circuit.
Voltage exceeds the voltage value of fishing line setting in order to prevent, can all increase clamp voltage electricity in circuit in general
Road, but existing clamp voltage circuit is all to adjust to obtain required voltage scope by the characteristics and dimensions of metal-oxide-semiconductor, than
It is cumbersome.In the utility model, high voltage tong seat circuit includes two lines being oppositely arranged high pressure clamp diode over the ground
GS3, GS4, input terminal are connected respectively with corresponding bus, output head grounding.High voltage tong seat circuit, which further includes, to be set
Put the Line To Line high pressure clamp diode GS1 between adjacent bus.The low pressure clamper sub-circuit includes be oppositely arranged two
A line over the ground with corresponding bus connect respectively by low pressure clamp diode TVS15, TVS16, input terminal, output head grounding.
The low pressure clamper sub-circuit further includes the Line To Line low pressure clamp diode TVS13 being arranged between adjacent bus.It is described anti-
High voltage surge device is resettable fuse PPTC1, PPTC2.The output terminal of the adjacent bus is respectively provided with an inductance L3, passes through
The signal processing chip circuit communication of the inductance and the fire-fighting user information transmitting device.
High pressure clamp diode GS3, GS4 form the high pressure clamp circuit of bus over the ground to two lines over the ground, and GS1 gets line pair
Line clamp circuit；When high pressure clamp voltage of the bus voltage higher than setting, high pressure clamp diode GS3, GS4 conducting, one
Charge is divided to discharge by its inflow the earth, so as to control the input voltage of bus in preset range of voltage values
It is interior.After resettable fuse PPTC1, PPTC2 prevent high voltage surge circuit, into low pressure clamp circuit.Similarly, two
Low pressure clamp diode TVS15, TVS16 form the low pressure clamp circuit of line over the ground to line over the ground, and TVS13 forms Line To Line low pressure pincers
Position circuit.The inductance L3 then inhibits the signal processing that high-frequency impulse interference signal enters the fire-fighting user information transmitting device
In chip circuitry.
The beneficial effects of the utility model are mainly reflected in：High voltage tong seat circuit can be effective with low pressure clamper sub-circuit
Ground limits the scope of voltage, and can obtain one has stable input voltage range, while can meet specific voltage requirements；
The generation of high voltage surge can effectively be placed and effectively inhibit the generation of high-frequency impulse interference signal.The utility model is saved
Circuit area improves the integrated level of circuit.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
For bright book as an entirety, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can
With the other embodiment of understanding.
The a series of tool that the feasibility embodiment only for the utility model is described in detail of those listed above
Body illustrates, they are all to be made without departing from the utility model skill spirit not to limit the scope of protection of the utility model
Equivalent implementations or change should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of bus anti-jamming circuit based on fire-fighting user information transmitting device, it is characterised in that：It is adjacent including being connected on
High voltage tong seat circuit and low pressure clamper sub-circuit between bus, high voltage tong seat circuit and low pressure clamper sub-circuit
Between bus on be provided with anti-high voltage surge device.
2. a kind of bus anti-jamming circuit based on fire-fighting user information transmitting device according to claim 1, feature
It is：High voltage tong seat circuit includes two lines being oppositely arranged high pressure clamp diode over the ground, input terminal respectively with
Corresponding bus series connection, output head grounding.
3. a kind of bus anti-jamming circuit based on fire-fighting user information transmitting device according to claim 2, feature
It is：High voltage tong seat circuit further includes the Line To Line high pressure clamp diode being arranged between adjacent bus.
4. a kind of bus anti-jamming circuit based on fire-fighting user information transmitting device according to claim 1, feature
It is：The low pressure clamper sub-circuit includes two lines being oppositely arranged low pressure clamp diode over the ground, input terminal respectively with
Corresponding bus series connection, output head grounding.
5. a kind of bus anti-jamming circuit based on fire-fighting user information transmitting device according to claim 4, feature
It is：The low pressure clamper sub-circuit further includes the Line To Line low pressure clamp diode being arranged between adjacent bus.
6. a kind of bus anti-jamming circuit based on fire-fighting user information transmitting device according to claim 1, feature
It is：The anti-high voltage surge device is resettable fuse.
7. a kind of bus anti-jamming circuit based on fire-fighting user information transmitting device according to claim 1, feature
It is：The output terminal of the adjacent bus is respectively provided with an inductance, passes through the inductance and the fire-fighting user information transmitting device
Signal processing chip circuit communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477146.0U CN207380596U (en) | 2017-11-08 | 2017-11-08 | A kind of bus anti-jamming circuit based on fire-fighting user information transmitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477146.0U CN207380596U (en) | 2017-11-08 | 2017-11-08 | A kind of bus anti-jamming circuit based on fire-fighting user information transmitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207380596U true CN207380596U (en) | 2018-05-18 |
Family
ID=62335440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721477146.0U Active CN207380596U (en) | 2017-11-08 | 2017-11-08 | A kind of bus anti-jamming circuit based on fire-fighting user information transmitting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207380596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247543A (en) * | 2019-06-21 | 2019-09-17 | 秦皇岛尼特智能科技有限公司 | A kind of circuit for reinforcing conduction interference immunity to interference in fire-fighting bus |
-
2017
- 2017-11-08 CN CN201721477146.0U patent/CN207380596U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247543A (en) * | 2019-06-21 | 2019-09-17 | 秦皇岛尼特智能科技有限公司 | A kind of circuit for reinforcing conduction interference immunity to interference in fire-fighting bus |
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