CN203982558U - The defence area bypath system of warning system - Google Patents
The defence area bypath system of warning system Download PDFInfo
- Publication number
- CN203982558U CN203982558U CN201420499600.2U CN201420499600U CN203982558U CN 203982558 U CN203982558 U CN 203982558U CN 201420499600 U CN201420499600 U CN 201420499600U CN 203982558 U CN203982558 U CN 203982558U
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- Prior art keywords
- bypass
- resistance
- defence area
- warning system
- bypath
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Abstract
The utility model relates to public safety alarm system field, particularly a kind of defence area bypath system of warning system, the input end of bypath system connects the monitoring probe of warning system, the output terminal of bypath system connects the expansion board of warning system, the output terminal of expansion board connects the alarm host machine of warning system, bypath system comprises bypass segment and control section, monitoring probe is connected with the input end of bypass segment, the output terminal of bypass segment is connected with described expansion board, and control section is connected with the control end of bypass segment.The utility model has been realized the output signal of detector has been carried out to bypass from hardware, can only upload effective warning message according to the actual conditions in defence area, invalid warning message is not uploaded completely, and can realize manual or timing automatic bypass operation, greatly alleviate the pressure of bus, solved the problem that data are stopped up.
Description
Technical field
The utility model relates to the defence area bypath system in public safety alarm system field, particularly a kind of warning system.
Background technology
Along with the continuous increase of security protection application, the units such as some large-scale museums, tourist district, exhibition center also improve constantly the requirement of security protection, therefore large-scale warning system all can be installed by these units, comprises multiple alarm host machine and multiple monitoring probe (these probes can be infrared, microwave, infrared microwave dual technology detector etc.), but alarm host machine can only directly connect the probe of 10 left and right conventionally, in the time of probe One's name is legion, need to be defence area expansion board access alarm host machine by the accessory of warning system, conventionally every defence area expansion board can be controlled 8 probes, need to manage 250 probes as a warning system just need to install 30 defence area expansion boards and realize, each piece defence area expansion board is connected with the data communication bus interface of alarm host machine by two data lines respectively, because the data communication bus interface of alarm host machine only has an interface, when 30 defence area expansion boards use simultaneously, be equivalent to data bus interface 30 data lines that have been connected in parallel, and alarm host machine meeting is real-time and defence area expansion board carries out communication, so the problem causing is: in the changeable environment of some more complicated, as museum, tourist district, exhibition centers etc. can be because the stream of people be more, can often have a mind to or inadvertent free is arranged on the probe of exhibition room, the information exchange that probe receives is crossed defence area expansion board and is transmitted to alarm host machine, thereby make a large amount of status datas continuously be sent to alarm host machine, cause the bus communication of alarm host machine to stop up, even make whole warning system in paralyzed state, cause report to the police report and not report accident late.Although existing warning system also has the function of bypass, this bypass functionality is by software, alarm host machine to be received to information to investigate analyzing and processing later, and the information that can not upload detector is carried out bypass processing.
Utility model content
The utility model is for problems of the prior art, a kind of defence area bypath system of warning system is proposed, realize the output signal of detector has been carried out to bypass processing from hardware, can filter warning message according to the actual conditions in defence area, invalid warning message is not uploaded completely, greatly alleviate the pressure of bus, solved the problem that data are stopped up.
Technical problem to be solved in the utility model is achieved by the following technical solution:
A kind of defence area bypath system of warning system, the input end of bypath system connects the monitoring probe of warning system, the output terminal of bypath system connects the expansion board of warning system, the output terminal of described expansion board connects the alarm host machine of warning system, described bypath system comprises bypass segment and control section, described monitoring probe is connected with the input end of bypass segment, and the output terminal of bypass segment is connected with described expansion board, and described control section is connected with the control end of bypass segment.
Further, control section comprises single-chip microcomputer, and the clock circuit, communicating circuit and the power circuit that are connected with single-chip microcomputer respectively, bypass segment comprises four bidirectional analog switches, triode Q1, triode Q2, bypass resistance R4, the input interface of four bidirectional analog switches is connected with the output interface of monitoring probe by line end resistance R X, the output interface of four bidirectional analog switches is connected with bypass resistance R4 and expansion board respectively, the other end of described bypass resistance R4 is connected with the collector of triode Q2, the base stage of triode Q2 is connected with collector and the resistance R 3 of triode Q1 respectively, the other end of resistance R 3 is connected with positive 5V power supply, the base stage of triode Q1 is connected with the output interface of single-chip microcomputer and the control interface of four bidirectional analog switches respectively by resistance R 5.
Particularly, the resistance of bypass resistance R4 equals the resistance of the line end resistance of described monitoring probe; The single-chip microcomputer of described control section is the every single-chip microcomputer with 32 tunnels control output interfaces, and the number N of the bypass segment of every single-chip microcomputer connection is less than or equal to 16.
Further, also comprise host computer, host computer is connected with control section.
The utlity model has following advantage and good effect:
The utility model has been realized the output signal of detector has been carried out to bypass from hardware, can only upload effective warning message according to the actual conditions in defence area, invalid warning message is not uploaded completely, and can realize manual or timing automatic bypass operation, greatly alleviate the pressure of bus, solved the problem that data are stopped up.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is schematic block diagram of the present utility model;
Fig. 2 is the schematic block circuit diagram of the utility model bypath system;
Fig. 3 is the theory diagram of the utility model control section;
Fig. 4 is the theory diagram of the utility model bypass segment;
Fig. 5 is the theory diagram of four bidirectional analog switches of the utility model bypass segment;
Fig. 6 is example schematic of the present utility model.
Embodiment
Fig. 1 is schematic block diagram of the present utility model.As shown in Figure 1, a kind of defence area bypath system of warning system, the input end of bypath system connects the monitoring probe of warning system, the output terminal of bypath system connects the expansion board of warning system, the output terminal of expansion board connects the alarm host machine of warning system, and bypath system comprises bypass segment and control section, and monitoring probe is connected with the input end of bypass segment, the output terminal of bypass segment is connected with described expansion board, and control section is connected with the control end of bypass segment.
As shown in Figure 1, as an embodiment, the control section of bypath system of the present utility model connects 16 bypass segments, and 16 detectors connect 2 defence area expansion boards.For a large-scale warning system, 1 alarm host machine can connect 30 defence area expansion boards, and every defence area expansion board connects 8 detectors, and 30 defence area expansion boards connect 240 detectors, need 240 bypass segments, 15 cover bypath system of the present utility model.
Fig. 2 is the schematic block circuit diagram of the utility model bypath system, and Fig. 3 is the theory diagram of the utility model control section.Shown in Fig. 2 and Fig. 3, control section comprises single-chip microcomputer, and the clock circuit, communicating circuit and the power circuit that are connected with single-chip microcomputer respectively; Clock circuit is made up of crystal oscillator Y1, capacitor C 12, capacitor C 13, power circuit is made up of 12V DC power supply (not shown), capacitor C 1, C9, C8, C2, voltage stabilizing chip U3, U4, wherein capacitor C 1, C8, C9, C2 strobe, voltage stabilizing chip U3 output 5V burning voltage, voltage stabilizing chip U4 output 9V burning voltage, resistance R 1, LED 1 form power indicating circuit; Communicating circuit is made up of RXD, TXD in the P3 mouth of communication chip U1, capacitor C 4, C5, C6, C7 and single-chip microcomputer, single-chip microcomputer model is AT89S52, be responsible for reception, decoding and control to bypass instruction, output interface is respectively P0.0 to P0.7, P1.0 to P1.7, P2.0 to P2.7.
Fig. 4 is the theory diagram of the utility model bypass segment, and Fig. 5 is the theory diagram of four bidirectional analog switches of the utility model bypass segment.As shown in Figure 5, from economy and ease for use, bypass segment of the present utility model adopts four bidirectional analog switches, the model of four bidirectional analog switches is CD4066, the main multipath transmission as analog or digital signal, CD4066 is made up of four separate two-way switchs, the corresponding control interface of each switch, shown in Fig. 4 and Fig. 5, bypass segment is taking one of them defence area as example, bypass segment comprises four bidirectional analog switch U2A, triode Q1, triode Q2, bypass resistance R4, the control interface of four bidirectional analog switch U2A, the 13rd pin of four bidirectional analog switch U2A is connected with the output interface of single-chip microcomputer, the input interface of four bidirectional analog switch U2A, the 1st pin of four bidirectional analog switch U2A is connected with the output interface of monitoring probe by line end resistance R X, R2 in figure is voltage dependent resistor (VDR), for lightning protection, the output interface of four bidirectional analog switch U2A, the 2nd pin of four bidirectional analog switch U2A is connected with bypass resistance R4 and alarm host machine respectively, the other end of bypass resistance R4 is connected with the collector of triode Q2, the base stage of triode Q2 is connected with collector and the resistance R 3 of triode Q1 respectively, the other end of resistance R 3 is connected with positive 5V power supply, the base stage of triode Q1 is connected with the 13rd pin of single-chip microcomputer output interface and four bidirectional analog switch U2A respectively by resistance R 5.
The resistance of bypass resistance R4 is determined according to the resistance of line end resistance, line end resistance is a resistance element, directly be welded on the inside of monitoring probe, each monitoring probe can connect a line end resistance, and the quantity of monitoring probe requires to determine according to warning system; The resistance of bypass resistance R4 of the present utility model equals the resistance of line end resistance, because after bypass, equals to cut off monitoring probe and line end resistance, so need to refill a line end resistance, bypass resistance R4 has been the effect that replaces line end resistance.
The single-chip microcomputer that control section adopts is the every single-chip microcomputer with 32 road output interfaces, can realize the control output on 1 Zhi32 road.According to actual requirement of engineering, every single-chip microcomputer is controlled at most 16 road bypass segments, because along with the quantity of the number N of bypass segment increases, the size of circuit board also can increase (because the quantity of electronic devices and components can increase), must make the cabinet of mounting circuit boards also can increase (because cabinet not only needs mounting circuit boards also to need to install the equipment such as other power supply or optical transmitter and receiver), but it is comparatively rare that in fact multiple defence areas expansion board is arranged on the situation in same place, all generally 1-2 piece expansion board, so selected N is less than or equal to 16.
Also comprise host computer, host computer is connected with control section; Defence area keeper selectes defence area by host computer, then each defence area is carried out manually or the setting of deploying troops on garrison duty or withdraw a garrison of timing, the communication that host computer is set user is to control section, the information that the single-chip microcomputer of control section is set according to user is to the setting of deploying troops on garrison duty or withdraw a garrison of each defence area, when timing is when maybe needing to change cloth, disarming state, command is arrived bypass segment by single-chip microcomputer, after the instruction of bypass segment identification single-chip microcomputer, command information is outputed to output, thereby deploy troops on garrison duty accordingly or withdraw a garrison in the defence area of realizing specifying; Then the single-chip microcomputer of control section is by the feedback of status of bypass segment to host computer, and host computer shows in the mode of figure.The effect of host computer be for the keeper of safety-protection system graphical interfaces be provided, accept bypass operation, send specify defence area bypass information, according to Preset Time, automatically deployed troops on garrison duty and withdrawn a garrison in defence area, show deploying troops on garrison duty of defence area and withdraw a garrison information in the mode of figure simultaneously.
Taking the first section of embodiment as example, the workflow of the defence area bypath system of the utility model warning system is described below:
In the time need to normally deploying troops on garrison duty in the defence area of monitoring probe, single chip computer AT 89S52 receives the control signal of host computer, the output interface P0.0 output high level of single chip computer AT 89S52, and triode Q1 conducting, triode Q2 cut-off, bypass resistance R4 is inoperative; Meanwhile, the 13rd pin of the four bidirectional analog switch U2A that model is CD4066 is because input high level, and analog switch conducting makes monitoring probe pass through the conducting that is connected of line end resistance R X and defence area expansion board.
In the time that the defence area of monitoring probe needs bypass, single chip computer AT 89S52 receives the bypass instruction of host computer, the output interface P0.0 output low level of single chip computer AT 89S52, triode Q1 cut-off, triode Q2 conducting, bypass resistance R4 and ground join, and are equivalent to this defence area and have been access in bypass resistance R4, the line end resistance of the monitoring probe of the present embodiment is 10k Ω, so the resistance of bypass resistance R4 is 10k Ω.Meanwhile, the 13rd pin of four bidirectional analog switch U2A is because input low level, and analog switch is in high-impedance state, makes the disconnection that is connected of monitoring probe and defence area expansion board.
Fig. 6 is example schematic of the present utility model.As shown in Figure 6, below taking certain the exhibition of cultural relics Room as example, 5 infrared microwave dual technology detectors are installed in the show room Room and are respectively T1 to T5, at the exterior wall of show room, 4 infrared opposite-type detectors are installed and are respectively T6 to T9, these 9 detectors are connected with same alarm host machine by 2 defence area expansion boards respectively, the bypath system of the present embodiment only need arrange 9 bypass segments, 9 bypass segments are separately positioned between 9 detectors and 2 defence area expansion boards, and the control end of 9 bypass segments is connected with the control section of bypass segment respectively.
When exhibition room is carried out, when stream of people's quantity is large and crowded, can sends instruction by host computer part is popped one's head in bypass condition, as make T1 to T5 detector in bypass condition, make T6 to T9 in Normal Alarm state; In the time of the exhibition room exhibition of closing or stream of people's quantity rareness, then send instruction by host computer, make T1 to T9 all in Normal Alarm state, thereby ensureing, under the prerequisite of effective monitoring, effectively to alleviate total linear pressure, avoid occurring data and stop up and systemic breakdown accident.System can also, according to defence area actual conditions, be utilized the function of host computer time set bypass, as automatically opened or close bypass functionality in some period.
In a word, the utility model has been realized the output signal of detector has been carried out to bypass from hardware, can just upload effective warning message according to the actual conditions in defence area, and invalid warning message is not uploaded completely; And can realize the bypass operation of manual or timing automatic, greatly alleviate the pressure of bus, solve the problem that data are stopped up.
Claims (5)
1. the defence area bypath system of a warning system, it is characterized in that, the input end of described bypath system connects the monitoring probe of warning system, the output terminal of bypath system connects the expansion board of warning system, the output terminal of described expansion board connects the alarm host machine of warning system, described bypath system comprises bypass segment and control section, described monitoring probe is connected with the input end of bypass segment, the output terminal of bypass segment is connected with described expansion board, and described control section is connected with the control end of bypass segment.
2. the defence area bypath system of warning system according to claim 1, is characterized in that, described control section comprises single-chip microcomputer, and the clock circuit, communicating circuit and the power circuit that are connected with single-chip microcomputer respectively, described bypass segment comprises four bidirectional analog switches, triode Q1, triode Q2, bypass resistance R4, the input interface of four bidirectional analog switches is connected with the output interface of monitoring probe by line end resistance R X, the output interface of four bidirectional analog switches is connected with bypass resistance R4 and expansion board respectively, the other end of described bypass resistance R4 is connected with the collector of triode Q2, the base stage of triode Q2 is connected with collector and the resistance R 3 of triode Q1 respectively, the other end of resistance R 3 is connected with positive 5V power supply, the base stage of triode Q1 is connected with the output interface of single-chip microcomputer and the control interface of four bidirectional analog switches respectively by resistance R 5.
3. the defence area bypath system of warning system according to claim 2, is characterized in that, the resistance of described bypass resistance R4 equals the resistance of the line end resistance of described monitoring probe.
4. the defence area bypath system of warning system according to claim 2, is characterized in that, the single-chip microcomputer of described control section is the every single-chip microcomputer with 32 tunnels control output interfaces, and the number N of the bypass segment of every single-chip microcomputer connection is less than or equal to 16.
5. according to the defence area bypath system of the warning system described in claim 1-4 any one, it is characterized in that, also comprise host computer, described host computer is connected with control section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499600.2U CN203982558U (en) | 2014-09-01 | 2014-09-01 | The defence area bypath system of warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499600.2U CN203982558U (en) | 2014-09-01 | 2014-09-01 | The defence area bypath system of warning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203982558U true CN203982558U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420499600.2U Withdrawn - After Issue CN203982558U (en) | 2014-09-01 | 2014-09-01 | The defence area bypath system of warning system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203982558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240462A (en) * | 2014-09-01 | 2014-12-24 | 佛山市新东方电子技术工程有限公司 | Defence area bypass system of alarm system |
-
2014
- 2014-09-01 CN CN201420499600.2U patent/CN203982558U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240462A (en) * | 2014-09-01 | 2014-12-24 | 佛山市新东方电子技术工程有限公司 | Defence area bypass system of alarm system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20171114 |