CN2086951U - Multiplexing communication integrated circuit - Google Patents
Multiplexing communication integrated circuit Download PDFInfo
- Publication number
- CN2086951U CN2086951U CN 90223155 CN90223155U CN2086951U CN 2086951 U CN2086951 U CN 2086951U CN 90223155 CN90223155 CN 90223155 CN 90223155 U CN90223155 U CN 90223155U CN 2086951 U CN2086951 U CN 2086951U
- Authority
- CN
- China
- Prior art keywords
- circuit
- alarm
- main frame
- constitute
- extension
- 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.)
- Withdrawn
Links
Images
Landscapes
- Alarm Systems (AREA)
Abstract
The utility model discloses a multiplexing communication integrated circuit which utilizes circuit time division multiplexing principle. The device is composed of a main frame, a main extension, an auxiliary extension and an alarm switch, which adopts the methods of signals parallel input, serial transmission and concurrent output. The multiplexing communication integrated circuit can complete 64-channel or multiple channels alarm simultaneously. The utility model has the advantages of high reliability, convenient maintenance, visualized mode and obvious alarm indication, which can simultaneously display all alarm signals with alarm sound. The main frame also has self-checking function. Because the connection between main frame and main extension is simple, complete machine cost and installation cost are low. The utility model is especially suitable for long distance multiplex alarm in the departments or places of hospitals, markets, hotels, warehouses, etc.
Description
The utility model is a kind of integrated circuit multichannel annunciator simultaneously.
Existing multichannel annunciator, generally be main frame with each alarm point between be connected by signal independently respectively, can be shared except that power line and ground wire, 50 alarm points just have 50 signal line to link to each other with main frame, this annunciator lead-in wire is many, is not easy to install and maintenance.Also having a kind of annunciator is to adopt time-devision system multiplex communication principle, use the control bus mode, the annunciator of forming by main frame integrated circuit code junction box and alarm branch road, main frame adopts the fluorescent charactron to show that alarm point numbers, and is linked to each other by a four-core shielded type cable between main frame and integrated circuit code junction box.This annunciator is owing to adopt fluorescent charactron display mode, when alarm is arranged, the fluorescent charactron shows an alarm point numbering per 2.2 seconds, when multiple spot simultaneously during alarm, information transmission speed is slow, and the operator on duty must the attentiveness high concentration repeat reading annunciator demonstration number over and over again, misremembers or omit institute's count off sign indicating number easily, therefore, be not suitable for and having multiple spot to use under the occasion of alarm possibility simultaneously.In addition, between main frame and the integrated circuit code junction box used four-core shielded type cable price than the common wiring height, economical inadequately.
The purpose of this utility model provide a kind ofly be suitable for the multiple spot alarm, cabling is few, and adopts common wiring, is easy to installation and maintenance, cost is low, function is complete multichannel annunciator simultaneously.
The main frame that integrated circuit multichannel while annunciator of the present utility model is made up of power circuit, clock pulse signal generation circuit, cycle-counter circuit, decoding circuit, news sound circuit, display circuit, self-checking circuit, the main extension of forming by power circuit, data selection circuit, cycle-counter circuit, alarm branch road, and three of being made up of power circuit, data selection circuit, alarm branch road pay extension set and shell constitutes.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is an operation principle block diagram of the present utility model.
Fig. 2 is circuitry figure of the present utility model.
Fig. 3 is a system of the present utility model connection layout.
Fig. 4 is a shape assumption diagram of the present utility model.
This integrated circuit multichannel simultaneously annunciator by main frame, main extension, three pay extension set and alarm branch road, the alarm switch is formed.Main frame is by power circuit, clock pulse signal generation circuit, counting circuit, and eight major parts such as first order decoding circuit and second level decoding circuit and music alarm circuit, display circuit, self-checking circuit are formed.Main extension is by power circuit, and five major parts such as first order data selection circuit, second level data selection circuit, counting circuit and alarm branch road are formed.Be connected with common five core winding displacements between main frame and main extension.The first secondary extension set is made up of power circuit, data selection circuit and alarm branch road.Second, third secondary extension set structure is identical with the first secondary extension set.The time division multiplexing principle of this machine utilization circuit adopts the parallel input of signal serial transfer, and the line output load mode.When the complete machine operate as normal, the main extension counting circuit is 64 cycle count as modulus, its output is constantly exported 64 different states successively circularly, these 64 different states are corresponding with 64 input channels of data selection circuit respectively, the output of counting circuit links to each other with the control end of data selection circuit, comes control data to select the signal input of circuit input end thus.Meanwhile, the host count circuit also is 64 cycle count as modulus, its output is 64 different states of circulation output constantly successively, these 64 different conditions are corresponding with 64 output channels of decoding circuit respectively, the output of counting circuit links to each other with the control end of decoding circuit, and controls the signal output of decoding circuit output thus.
Its operation principle is as follows: the counting circuit of main frame and main extension is delivered in the CP pulse that frequency of CP pulse generating circuit output of main frame is 7KHz respectively, the counting circuit that makes main frame and main extension is respectively 64 synchronous circulation counting as modulus, be that host count and main extension counting circuit are exported 64 different conditions respectively, and correspondent equal one by one.When an alarm signal, the input of the first order data selection circuit of extension set is received this alarm signal, state in the output of extension set counting circuit just in time has the input channel of signal at once with first order data selection circuit, then this passage of data selection circuit is selected, and the data at its place select the output of integrated package to be chosen by second level data circuit, second level data selection circuit output signal is delivered to main frame by a signal line, signal is sent to the first order decoding circuit of main frame, again because the host count circuit is corresponding identical with the output state of extension set counting circuit, so the passage that main frame first order decoding circuit is corresponding with extension set second level data selection circuit is open-minded, and the signal that the data selection circuit that receives sends sent into and first order data are selected the corresponding second level of integrated package decoding integration block, and the state of host count circuit output is good down corresponding with it, this decoding output channel is selected, then decipher output signal is sent into display circuit this moment, show the alarm point.Display circuit is made up of triode and light-emitting diode and electrochemical capacitor, because it is step that signal transmits, occupation efficiency is big, so, the ON time of light-emitting diode is very short, and this will make light-emitting diode produce two problems when showing: (1) produces flicker; (2) luminance shortage for the flicker problem, can utilize the persistence of vision phenomenon of human eye that the light-emitting diode of alarm is looked as working under the direct current conducting state flicker free sense.For the luminance shortage problem, can utilize the capacitor charge and discharge principle, add an electrochemical capacitor at the light-emitting diode two ends, the ON time of light-emitting diode is prolonged, thereby guaranteed the brightness of light-emitting diode.When main frame showed alarm point, the music alarm circuit of main frame was received the signal that main extension is sent here and is sent music alarm sound alarm.
In the main frame by the 3C of three NAND gate among the 3n1 and peripheral circuit
1, 3C
2, 3C
3And 3W
1Constitute clock circuit, when it is reported device work, the generation frequency is that the cycle-counter circuit in main frame and the main extension is also delivered in the CP pulse of 7KHz respectively.The main frame cycle-counter circuit is made of a NAND gate among 3n4,3n9,3R6,3C7 and the 3n1, and the cycle-counter circuit in the main extension is made of a NAND gate among 2n1,2n6,2R1 and the 2n7.These two counting circuits are 64 synchronous circulation counting as modulus respectively by the quenching pulse of sending into separately " zero clearing " end under the effect of CP pulse synchronously.Constitute first order data selection circuit by 2n2～2n5 in the main extension, second level data selection circuit is made of 2n10.First order decoding circuit is made of 3n2 in the main frame, and 3n5～3n8 constitutes second level decoding circuit.The data selection circuit of each pair extension set is made of 2n3,2n4,2n5 respectively, and links to each other with the second level data selection circuit 2n10 of main extension respectively.The extension set data selection circuit has 64 signal input parts and 1 signal output part.The main frame decoding circuit has 1 signal input part and 64 signal output parts, and each input of extension set data selection circuit is controlled by the extension set counting circuit and chosen input signal successively, and the decoding circuit of main frame is output signal successively under the control of host count circuit then.Because main frame and extension set counting circuit are synchronous workings, therefore, the signal input is one to one with output.The condition of each extension set data selection circuit alarm signal input is: data select integrated package when input has input signal, and just in time the passage with this signal input part is corresponding as if the residing state in data selection circuit control input end.Then, this input channel is selected, and opens the transmission signal.
The condition of decoding integration block output signal is: when decoding circuit had input signal, if the residing input state of decoding integration block control end is just in time corresponding with the output channel of wanting feed signals, then this passage was selected, and open-minded, transmitted output signal.
When unmanned alarm, though counting circuit in cycle count constantly, the data selection circuit input does not have input signal, the condition that transmits signal according to data selection circuit does not have passage selected as can be known, therefore, no signal output.When people's alarm, close as 1K1, light-emitting diode 1BG1 conducting, and make luminous indication, with the 2BG1 conducting, select integrated package 2n2 input D to data.A low imput, and D.Corresponding first order data selection circuit control end A.A
1A
2A
3State be 0000, second level data are selected the selection control end A of integrated package
4A
5State be 00, therefore, if main extension counting circuit counting output state A at this moment
0A
1A
2A
3A
4A
5Be 000000 o'clock, D then.Passage is selected, and open-minded, and the alarm signal is sent to the decoding circuit of main frame, according to the condition of work of decoding integration block, at the output output state A of host count circuit
0A
1A
2A
3A
4A
5Be 000000 o'clock, decoding circuit output channel Y.Selected, and open the triode 4BG1 that signal is delivered to the main frame display circuit, because the decoding circuit output signal is low level, then 4BG
1Conducting, light-emitting diode 4BG65 forward conduction shows the alarm point on host panel.Constitute music alarm news by 3C4,3BG9,3R1,3R2,3R4,3BG4,3n3,3n5,3C5,4W1,4Y1,3BG1,3BG2,3BG3 and ring circuit, constitute self-checking circuit by 4QA1.The alarm element of alarm switch (26) can be switch, light-sensitive device, pressure-sensitive device, temperature-sensitive device or gas sensitive device.
During start work, want alarm as No. 7, press alarm switch (26), the luminous indication alarm of the light-emitting diode of Job's post present position (24) as people's alarm.Relay in the main extension (22) adhesive, regional alarm indicator light (27) is bright, and representing has people's alarm in this zone.When the alarm switch closed, first and second grade data selection circuit was delivered to first and second grade of main frame decoding circuit with the alarm signal through the line (20) of main frame and main extension under the effect of main extension cycle-counter circuit.First and second grade decoding circuit is delivered to display circuit with signal under the effect of main frame cycle-counter circuit, then the indication light-emitting diode of the alarm on the main frame (1) is luminous.The signal of delivering to the main frame decoding circuit through (20) also is sent to news sound circuit simultaneously, sound alarm takes place, regulate volume control potentiometer (11) and can change volume, press button (8) scalable electronic clock (7) " time ", press " branch " of button (9) scalable electronic clock.(2) among Fig. 4 are the main frame hook, (3) be alarm point registration card, (4) be host panel, (5) be power supply indicator, (6) be that mains switch (12) is the indication of alarm point, (13) are loudspeaker, and (14) are fuse base, (15) be power line, (16) be power transformer, (17) are bonnet, and (18) are main frame mainboard socket, (19) be mainboard, (21) be the main extension box, the numbering at (23) alarm point place, (24) write down deck for the Job's post, (28) be the pilot lamp power line, (29) are the extension set box.If main frame is carried out self check, press self check button (10), can react by acousto-optic and know whether host work is normal.It is reported that 3n1,2n7 are hex inverter in the integrated circuit of device, model is DG7404,3n4,3n9,2n1,2n6 are 4 binary system coincidence counters, model DG74163,2n2,2n3,2n4,2n5 16 select 1 data selector, and model is DG74150,3n2,3n5,3n6,3n7,3n8 are 4 lines-16 line ocean sign indicating number device, model is DG74154, and 2,n10 8 selects 1 data selector, model DG74151.
It is reported that main extension was one when device was used for 64 road alarms, paying extension set is three, if when needing to increase the alarm way, under the situation that does not increase the counter element, can be by in main frame, increasing decoding integration block and selecting integrated package and adjustment cycle-counter circuit modulus to realize by the data that increase in the extension set.
This integrated circuit multichannel is annunciator simultaneously, can show each alarm point simultaneously, the alarm indication comes into plain view, be difficult for makeing mistakes, and have self-checking function, also can carry out the multichannel expansion as required, owing to is connected between main frame and the main extension simply, complete machine cost and mounting cost are lower, and be easy to maintenance, and the long distance multi-channel alarm is made in department such as particularly suitable hospital, market, hotel, restaurant, warehouse or place.
Claims (5)
1, a kind of integrated circuit multichannel while annunciator, it is characterized in that by power circuit, clock pulse signal generation circuit, cycle-counter circuit, the main frame that first and second grade decoding circuit, alarm circuit, display circuit and self-checking circuit are formed, by power circuit, first and second grade data selection circuit, the main extension that cycle-counter circuit and alarm branch road are formed, pair extension set and the alarm switch be made up of power circuit, data selection circuit and alarm branch road constitute:
A, constitute clock circuit by 3C1,3C2,3C3 and the 3W1 of three NAND gate among the 3n1 and peripheral circuit;
B, constitute the main frame cycle-counter circuit by a NAND gate among 3n4,3n9,3R6,3C7 and the 3n1; Constitute the main extension cycle-counter circuit by a NAND gate among 2n1,2n6,2R1 and the 2n7;
C, constitute main extension first order data selection circuit, constitute second level data selection circuit by 2n10 by 2n2～2n5;
D, constitute first order decoding circuit in the main frame by 3n2,3n5～3n8 constitutes second level decoding circuit;
E, each pair extension set data selection circuit that is made of 2n3,2n4,2n5 link to each other with the second level data selection circuit 2n10 of main extension respectively;
Be connected by one five core winding displacement between f, main frame and the main extension;
G, display circuit are made up of triode, light-emitting diode and electrochemical capacitor; Constitute the alarm news by 3C4,3BG9,3R1,3R2,3R4,3BG4,3n3,3n5,3C5,4W1,4Y1,3BG1,3BG2,3BG3 and ring circuit;
H, constitute self-checking circuit by 4QA1.
2, annunciator as claimed in claim 1 is characterized in that every extension set can connect 16 alarm points.
3, annunciator as claimed in claim 1, main extension is one when it is characterized in that being used for 64 road alarms, paying extension set is three, if under the situation that does not increase the counter element, can select integrated package and adjustment cycle-counter circuit modulus to realize in the time of need increasing the alarm way by increase decoding integration block in main frame with by the data that increase in the extension set.
4, annunciator as claimed in claim 1 is characterized in that organizing the alarm element of alarm switch can be switch, light-sensitive device, pressure-sensitive device, temperature-sensitive device or gas sensitive device.
5, annunciator as claimed in claim 1, it is characterized in that 3n1,2n7 are hex inverter, 3n4,3n9,2n1,2n6 are 4 binary system coincidence counters, 2n2,2n3,2n4,2n5 16 select 1 data selector, 3n2,3n5,3n6,3n7,3n8 are 4 lines-16 line ocean sign indicating number device, and 2,n10 8 selects 1 data selector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90223155 CN2086951U (en) | 1990-11-02 | 1990-11-02 | Multiplexing communication integrated circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90223155 CN2086951U (en) | 1990-11-02 | 1990-11-02 | Multiplexing communication integrated circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2086951U true CN2086951U (en) | 1991-10-16 |
Family
ID=4900972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90223155 Withdrawn CN2086951U (en) | 1990-11-02 | 1990-11-02 | Multiplexing communication integrated circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2086951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104202034A (en) * | 2014-08-13 | 2014-12-10 | 深圳市亚泰光电技术有限公司 | Circulating multichannel selection circuit system |
-
1990
- 1990-11-02 CN CN 90223155 patent/CN2086951U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104202034A (en) * | 2014-08-13 | 2014-12-10 | 深圳市亚泰光电技术有限公司 | Circulating multichannel selection circuit system |
| CN104202034B (en) * | 2014-08-13 | 2017-11-03 | 深圳市亚泰光电技术有限公司 | A kind of recyclable multi-center selection circuit system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1010516B (en) | Device for marking edges of shelves | |
| WO1999039319A2 (en) | Illuminated sign system | |
| CN101060736B (en) | Street lamp remote control system | |
| US4854062A (en) | Illuminated house number device | |
| EA005663B1 (en) | Traffic light displaying remaining time | |
| CN103634980A (en) | Remote illumination control device used for advertising lamp box | |
| CN2086951U (en) | Multiplexing communication integrated circuit | |
| CN201307338Y (en) | Automatic moving bus station display board for buses | |
| JP2995664B2 (en) | Information display device | |
| CN210405743U (en) | Railway color lamp lighting unit | |
| JPS62193481A (en) | Remote supervisory and controlling equipment | |
| CN217506854U (en) | Evacuation marker lamp with information issuing function | |
| CN212966547U (en) | Intelligent bus LCD station-saving board for smart city | |
| CN210377827U (en) | Data acquisition and transmission structure of equipment operation recorder | |
| CN218159313U (en) | Composite signal lamp for motor vehicle | |
| CN210627490U (en) | Intelligent warning board | |
| CN219225657U (en) | Equipment state warning system | |
| CN201788638U (en) | High-brightness LED display screen | |
| CN214671520U (en) | Electronic signboard with emergency function | |
| CN209543539U (en) | Wireless fire alarm equipment | |
| CN1391425A (en) | Time-division full-intelligent energy-saving control system of street lamps | |
| CN209496465U (en) | A kind of wire communication has the LED bright light prompt equipment of detection function | |
| AU657963B2 (en) | Payphone advertising distribution system | |
| CN1426241A (en) | Call display system for taxi | |
| CN2315722Y (en) | Electric fan controller with remote control displayer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |