CN85200965U - Floating population number meter - Google Patents
Floating population number meter Download PDFInfo
- Publication number
- CN85200965U CN85200965U CN 85200965 CN85200965U CN85200965U CN 85200965 U CN85200965 U CN 85200965U CN 85200965 CN85200965 CN 85200965 CN 85200965 U CN85200965 U CN 85200965U CN 85200965 U CN85200965 U CN 85200965U
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- China
- Prior art keywords
- mobile number
- number meter
- counter
- meter according
- population
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Abstract
The utility model discloses a floating population number meter, which is an electronic instrument for counting the floating population number in public places such as an exhibition center, etc. The previous mechanical or electronic counter generally uses accumulation method, and consequently can only counter the total population who enter, and can not show the present population in the place. The utility model provides a device which can counter the flowing population number, which can not only display the total population at any time, but also can display the present population at any time. Moreover, when the population number exceeds the limit of the place, sound or light alarm can be sent out.
Description
The present invention relates to the electronic device of the mobile number of statistics in the public places such as exhibition, market.
In the public places such as many exhibitions, market,, counter is installed in the porch usually in order to control and to understand visitor number.Present counter has two kinds of electronic type and mechanical types, but generally adopt summation, so the total number of persons that can only add up into, and can not in time grasp existing number in the public places such as an exhibition, market, thereby also can't realize in the porch number of entering being regulated according to the number limit in the field.
The present invention is exactly in order to overcome above-mentioned shortcoming, and has proposed a kind of novel counter, and the number meter that promptly flows to realize both having demonstrated total number of persons at any time, can demonstrate existing number again at any time, thereby reaches the purpose that can control the number of public place.
The present invention is a kind of mobile number meter, as shown in Figure 1, it partly is made up of come in and go out classified sensor, shaping circuit, phase inverter, trigger, discrepancy Discr., up-down counter, display, preset device (dial), comparer, alarm and error adjustment etc.
Discrepancy classified sensor: in order to add up the number of flowing, then counter must can be distinguished a people " entering " and " coming out ", thereby the discrepancy classified sensor should be set, it is made up of two infrared power valves of cover and infrared light receiving tube, and presses inside and outside series arrangement in the gateway.One group in the gateway outside, and one group in the inboard, gateway.As the people by the time, must induce two pulses, two pulses are compared, as outside pulse preceding, inboard pulse after, then expression enters a people.Otherwise inboard pulse is preceding, outside pulse after, the expression people that goes out then.Sensitive elements such as sensor can make and use up, power, electrostatic induction here, are to be the example explanation with the optical sensor, as shown in Figure 2, and (quite square frame 1,2,3,4 parts among Fig. 1).With infrarede emitting diode and photodiode and amplification and rectification circuit composition optical sensor, left end D among the figure
1Be infrarede emitting diode, right-hand member is photodiode D
2T
1, T
2For forming the brilliant triode of amplifying circuit.Work as D
1, D
2Between infrared light by the time, D
2Be Low ESR, T
1The base stage of pipe is a noble potential, T
2The base stage of pipe is an electronegative potential, thereby ends.Once have the people to pass through, D
1, D
2Between light interdicted D
2Be high impedance, make T
2Conducting produces pulse at emitter, forms the buffering shaping circuit with NOT-AND gate, and when it was output as " 1 ", expression had the people to pass through, otherwise then is " 0 ".
The Discr. of coming in and going out: it is two circuit that pulse signal compares and handles of " entering " and " coming out " that the classified sensor of coming in and going out is gathered.
Relatively the method for two pulse precedences as shown in Figure 3.Expression enters a people waveform among the figure.The A(outside) pulse is preceding, the B(inboard) pulse after.Take out a spike pulse C from the forward position of B pulse, take out a spike pulse D from the edge, back.C and A mutually " with " be " 1 ", D and A mutually " with " be " 0 ".Otherwise if walk out a people from inside to outside, then the B pulse is preceding, the A pulse after.At this moment, C and A mutually " with " be " 0 ", D and A mutually " with " be " 1 ".This shows that all E pulse occurs and represent to enter a people, the pulse people that represents to go out appears in F.Use a JK flip-flop, E is connect the J end, E is connect the K end.When time clock arrived, trigger Q end represented then that for " 1 " this person enters, if " 0 " represents that then this person goes out, circuit as shown in Figure 4.M among the figure
1, M
2Be AND gate, M
3Be OR-gate.M among the figure
1, M
2Output in, can only one be " 1 ", another is " 0 ".Pass through M
3Make whenever and once trigger by one person-time, make the time clock of counter, the state of its output Q is by the state decision of J, K.
Counting and demonstration: be provided with two cover countings, decoding driving and display system for on-the-spot number and accumulated number are shown respectively.Fig. 5 is the circuit diagram of on-the-spot people's counter.Pin 10 is plus-minus bus control end (M), and pin 15 is a counting input end.When M was " 1 ", counter was carried out addition; During for " 0 ", carry out subtraction, remainder is on-the-spot number.
Accumulated number counter and on-the-spot people's counter difference are that only meter enters number, disregard the number of going out.Its method is to put a NOT-AND gate at counting input end, and NOT-AND gate is differentiated trigger control by coming in and going out.When output Q is " 1 " counter execution addition, allow count pulse to pass through.Otherwise when Q was " 0 ", NOT-AND gate was under an embargo, so its sum total is accumulated number.
The present invention can also carry out the numerical value adjustment to some accidental errors.Its method judges at first and adds deduct that the pressing button carries out addend or subtrahend then.
The output of counter is connected with comparer, and another input end of comparer is for presetting number.When surpassing, on-the-spot number presets when several the alarm of promptly sending light or sound.
The display using plasma shows that font is big, brightness is high, the life-span is long.
The present invention has following advantage: (1) this mobile number meter not only can demonstrate total number of persons at any time, and can show the interior existing number that appears on the scene at any time, in on-the-spot number surpasses during limit, then can send sound or light and report to the police, thereby the porch can be regulated the number of entering according to this feedback information; (2) the present invention can also the line number value adjust some accidental errors; (3) using plasma shows, effective, the life-span is long; (4) design concept is ingenious, and is simple in structure, and cost is low.
Description of drawings: Fig. 1 is the block scheme of the mobile number meter of the present invention.Square frame 1,2 is an infrared transmitter among the figure; 3,4 is the infrared light receiver; 5,6 is shaping circuit; 7 is phase inverter; 8,9 is trigger; 10 are the arbiter of coming in and going out; 11 is up-down counter; 12 is on-the-spot number display; 13 is totalizer; 14 is the accumulated number display; 15 for presetting several devices (dial); 16 is comparer; 17 is warning horn; 18 is the error adjuster.Fig. 2 is the optical sensor of infrarede emitting diode and photodiode and amplification and rectification circuit composition; Fig. 3 is for comparing two pulse precedence method clock figure; Fig. 4 is flip-flop circuit figure; Fig. 5 is on-the-spot number counter circuit figure.
Embodiment: block scheme shown in Figure 1 is the block scheme of the embodiment of the invention, also is the structure that this mobile number meter is recommended.In this embodiment, adopted optical sensor, square frame 1,2 is infrarede emitting diode, and square frame 3,4 is photodiode, like this square frame 1 and 3 and and square frame 2 and 4 just constitute two and overlap optical sensor circuits.This two sensors circuit arrangement in use just in time meets the requirement of this instrument, and one group in the outside of gateway, one group of inboard in the gateway.When a people enters or comes out, will provide the different pulse signal of sequential like this by this two sensors.Square frame 5,6 is a shaping stage, respectively the input pulse signal is played buffering and shaping operation.7 is phase inverter, and it is " entering " or " coming out " that the signal that it sends two sensors here determines a people with the sequential difference.Then signal is passed to up-down counter 11, and show with on-the-spot number display.Fig. 5 is that on-the-spot people's counter of embodiment uses DG4510 can preset up-down counter.Wherein pin 9 can make counter reset for removing end before each work, and output is zero.Pin 10 is plus-minus bus control end (M).Pin 15 is a counting input end.When M was " 1 ", counter was carried out addition; During for " 0 ", carry out subtraction, remainder is on-the-spot number.The arbiter of coming in and going out also enters accumulative total the number signal simultaneously and gives square frame 13 totalizers, and shows with accumulated number display (14).Using plasma shows among the embodiment.Dispose among this embodiment and can preset several devices (15), comparer (16), sound, light crossing-signal (17) and error adjuster (18).Through experiment, when surpassing, on-the-spot number presets when several, and comparer will drive that alarm sends sound exactly or light is reported to the police.It is to adopt light emitting diode that light is reported to the police, and the piezoelectricity buzzer is adopted in acoustic alarm.
Claims (6)
1, a kind of mobile number meter that is applicable to the mobile number of public place statistics is characterized in that being provided with in the instrument discrepancy classified sensor, discrepancy Discr., up-down counter, decoding monitor, can preset comparer and alarm.
2, mobile number meter according to claim 1, the Discr. sensor that it is characterized in that coming in and going out is made up of two infrared power valves of cover and infrared light receiving tube, and presses inside and outside series arrangement in the gateway.The classified sensor of coming in and going out also can adopt sensitive elements such as power, electrostatic induction to form.
3, mobile number meter according to claim 1 is characterized in that adopting logical circuits such as AND gate, NOT-AND gate and trigger to form the Discr. of coming in and going out.
4, mobile number meter according to claim 1 is characterized in that up-down counter has error adjusting device.
5, mobile number meter according to claim 1 is characterized in that display adopts the Plasma Display that brightness is big, font is big.
6, mobile number meter according to claim 1 is characterized in that alarm is that employing sound or light are reported to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85200965 CN85200965U (en) | 1985-04-01 | 1985-04-01 | Floating population number meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85200965 CN85200965U (en) | 1985-04-01 | 1985-04-01 | Floating population number meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85200965U true CN85200965U (en) | 1986-10-15 |
Family
ID=4797138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85200965 Withdrawn CN85200965U (en) | 1985-04-01 | 1985-04-01 | Floating population number meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85200965U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293495C (en) * | 2002-05-04 | 2007-01-03 | 张国成 | Method of displaying and memorizing carrying persons for traffic vehicle |
| CN104636798A (en) * | 2013-11-06 | 2015-05-20 | 北京航天长峰科技工业集团有限公司 | Infrared bi-transmitting person counting method |
| CN106845619A (en) * | 2015-12-04 | 2017-06-13 | 上海杰轩智能科技有限公司 | A kind of method by TCP transmission passenger flow counting information |
| CN110905241A (en) * | 2019-12-16 | 2020-03-24 | 赵霄阳 | Multi-surface structural multimedia exhibition hall |
-
1985
- 1985-04-01 CN CN 85200965 patent/CN85200965U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293495C (en) * | 2002-05-04 | 2007-01-03 | 张国成 | Method of displaying and memorizing carrying persons for traffic vehicle |
| CN104636798A (en) * | 2013-11-06 | 2015-05-20 | 北京航天长峰科技工业集团有限公司 | Infrared bi-transmitting person counting method |
| CN106845619A (en) * | 2015-12-04 | 2017-06-13 | 上海杰轩智能科技有限公司 | A kind of method by TCP transmission passenger flow counting information |
| CN110905241A (en) * | 2019-12-16 | 2020-03-24 | 赵霄阳 | Multi-surface structural multimedia exhibition hall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| 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 |