CN101556708A

CN101556708A - Statistic system of quantity of people in building rooms

Info

Publication number: CN101556708A
Application number: CNA2008101901067A
Authority: CN
Inventors: 亓先军; 杨录; 王万月; 李文强
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-30
Filing date: 2008-12-30
Publication date: 2009-10-14

Abstract

The invention provides a statistic system of quantity of people in building rooms, which is characterized in that an infrared pyroelectric detector, a differential amplifier circuit, a differential circuit, an inlet/outlet signal identify circuit, a single chip and a wireless (wired) transmission module are electrically connected in sequence; a wireless (wired) receiving module, a keyboard, a display screen and a computer are respectively connected with the single chip electrically, respectively, two output ends of the inlet/outlet signal identify circuit are connected with two I/O interfaces of the single chip, the wireless (wired) transmission module of a terminal device transmits data to a main control terminal in a wireless or wired manner, and the main control terminal displays the data and collects the data at a data collecting terminal by local area network. A large screen is used for displaying the quantity of people in each room and displaying whether the room is used for a special purpose at the building entrance/exit, such that a user can conveniently select a desired room. The data colleting terminal displays the conditions of all building rooms of the department so as to conveniently check on work attendance and the utilization rate of the rooms.

Description

Statistic system of quantity of people in building rooms

Affiliated technical field

The utility model relates to a kind of room passenger number statistical system capable, especially can add up and show in real time each room number of building simultaneously, and can be many buildings building data transmission to our unit's master control room.

Background technology

At present, existing demographics device judges that passing in and out a person-time flow of the people of adding up a gateway or room comes the calculated room number.But, the demographics in single room can't convey to the people who newly enters building in the numerous building in rooms such as school instruction building or Library Reading chamber, will cause indivedual classrooms or reading room to crowd and other free time like this, make the people that need look for the seat will waste the more time and look for the vacant place, more buildings building data can't be gathered the situation of utilizing that makes things convenient for supvr's work attendance or check each room.

The utility model content

In order to overcome the deficiency that existing demographics device can not show the number situation in whole building room, the utility model provides a kind of statistic system of quantity of people in building rooms, this statistic system of quantity of people in building rooms can not only count the number in single room, and each room number of whole building can be gathered and be presented at the porch in real time, if having many buildings building also all data can be aggregated into master control room, unit makes things convenient for supvr's work attendance or statistics room utilization factor.

The technical scheme that its technical matters that solves the utility model adopts is: use pyroelectric infrared sensor to detect whether the someone passes in and out, by amplifying circuit and single-chip microcomputer processing and identification go out to be specially into or go out, add (subtracting) number accordingly.Use wireless (or wired) mode that each room data transmission is arrived the porch master control system, master control system control giant-screen demonstrates each room number in real time, and by LAN (Local Area Network) individual building building data is gathered demonstration.Can also artificially certain (a bit) room be made as andron according to actual conditions, then large screen display is an andron, no longer shows number.

The beneficial effects of the utility model are, can be in building enter the mouth out each room number of demonstration and private situation whether, saved the time of seeking the room, the supvr can gather terminal by data and conveniently check each room work attendance situation, sense terminals is only formed with a sensor and few circuit, data gather utilizes existing local net network resource, installs, use cost is cheap.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is that total system of the present invention connects block diagram.

Fig. 2 is a people in building rooms statistics detecting module block diagram.

Fig. 3 is that the statistic system of quantity of people in building rooms infrared signal is amplified and the modulate circuit schematic diagram.

Fig. 4 is that the statistic system of quantity of people in building rooms infrared signal is amplified and the modulate circuit signal waveforms.

Fig. 5 is a statistic system of quantity of people in building rooms main control part block diagram.

In Fig. 1,1. detecting module, 2. main control end, 3. data gather terminal.

In Fig. 2,1. infrared sensor 2. amplifies, differentiating circuit, 3. turnover signal recognition circuit, 4. Single Chip Microcomputer (SCM) system, 5. serial wireless transmitting system, 6. serial line transmission system, 7. power supply

In Fig. 3, provided concrete model, parameter and the annexation of the various devices of statistic system of quantity of people in building rooms sensor amplification of the present invention and modulate circuit.

In Fig. 4, (a) (b) be respectively among Fig. 3 amplifying circuit output (A) point from left to right and waveform from right to left, (c) (d) be respectively among Fig. 3 differentiating circuit output (Vb) point from left to right and waveform from right to left, (e) (g) be 01,02 time output high level sequential from left to right among Fig. 3, (e) (g) being 01,02 time output high level sequential from right to left among Fig. 3, be that sensor front elevation and direction mark (i).

In Fig. 5,1. display screen, 2. keyboard, 3. Single Chip Microcomputer (SCM) system, 4. serial wireless transmitting system, 5. serial line transmission system, 6. power supply, 7.RJ45 interface.

Embodiment

In the embodiment shown in fig. 1, detecting module (1) is installed on the import and export in each room, wireless or wired mode gathers to these building main control end (2) all room information by serial in the building, and main control end (2) the use ICP/IP protocol in all building of our unit is summarized in our unit's data by LAN (Local Area Network) and gathers terminal (3).

In embodiment illustrated in fig. 2, infrared sensor (1) uses the RE200B pyroelectric infrared sensor, amplify, differentiating circuit (2) uses two amplifiers and the capacitance resistance in the LM324 four high guaily unit to constitute, turnover signal recognition circuit (3) uses remaining two amplifiers formation two-way voltage comparator among the LM324, Single Chip Microcomputer (SCM) system (4) uses 51 series monolithics as master controller, serial wireless transmitting system (5) uses CC1100 to constitute wireless transport module, the CC1100 that this module adopts is the UHF transceiver of the real monolithic of a kind of low cost, uses for low-consumption wireless and designs.Circuit mainly is set at 315,433,868 and ISM (industry, science and medical science) and SRD (short-range device) frequency band of 915MHz, also can easily be set to other frequencies of 300-348MHz, 400-464MHz and 800-928MHz.The RF transceiver is integrated highly configurable modulator-demodular unit.This modulator-demodular unit is supported different modulation formats, and its data transmission rate can reach 500kbps.Be integrated in forward error recovery option on the modulator-demodular unit by unlatching, performance is got a promotion.CC1100 provides hardware supported widely for processing data packets, data buffering, burst transfers of data, clear channel estimating, quality of connection indication and electromagnetic wave excites.The main operating parameters of CC1100 and 64 transmission FIFO (FIFO stack) can be by the controls of SPI interface.Serial line transmission system (6) can select RS232 or 485 chips to realize according to actual transmissions apart from needs.Power supply (7) uses above 5V transformer of 100mA or powered battery all can.

In the embodiment shown in fig. 3, pyroelectric infrared sensor uses RE200B, its output signal is very faint, use LM324 to constitute 280 times of amplifying circuits, and by potentiometer R3 adjusting bias voltage, make quiescent output voltage steadily in Fig. 4 (a) (b) near the Uo, can't guarantee stability but this moment, signal was influenced by ambient temperature, so increase the one-level differentiating circuit, by potentiometer R11 regulate make static output Fig. 4 of being stable at not influenced by ambient temperature of differentiating circuit (c) (d) near the Uo, as people or infrared radiation source from left and right directions can see during through sensor window differentiating circuit output Vb can be with the direction difference waveform difference, promptly from left to right through out-of-date output waveform such as Fig. 4 (c), from right to left through out-of-date output waveform such as Fig. 4 (d).And through out-of-date Vb output a high level is only arranged from above-below direction when people or infrared radiation source, and can't distinguish direction, this is a pyroelectric infrared sensor RE200B inherent characteristic.Regulator potentiometer R13 output voltage is U1 among Fig. 4 (c), regulator potentiometer R14 output voltage is Uh among Fig. 4 (c), Vb is through the two-way voltage comparator circuit, when from left and right directions when the sensor window 01, (f) (g) (h) as Fig. 4 (e) for 02 output timing relation, promptly when 01 occurring low level earlier when the sensor window from left to right, low level appears after 02, as figure (e) (g), promptly when 02 occurring low level earlier when the sensor window from left to right, low level appears after 01, as figure (f) (h).Single-chip microcomputer uses interruption to obtain two low level sequencings can judge direction.

In the embodiment shown in fig. 5, the room quantity that display screen (1) shows is as required selected sizeable dot matrix screen or liquid crystal display, also can shield by compatible existing dot matrix, various screens such as liquid crystal display, keyboard (2) uses common 4*4 button to get final product, Single Chip Microcomputer (SCM) system (3), serial wireless transmitting system (4), serial line transmission system (5), power supply (6) all use with enforcement shown in Figure 2 in identical device, RJ45 interface (7) uses standard RJ45 interface, compatible ICP/IP protocol, the convenient utilization has the internal institution local net network, reduce installation cost, have better compatibility.

Claims

1. statistic system of quantity of people in building rooms, it is characterized in that infrared thermal release electric detector, differential amplifier circuit, differentiating circuit, the turnover signal recognition circuit, single-chip microcomputer, wireless (wired) transmitter module is electrically connected in proper order, wireless (wired) receiver module, keyboard, display screen, computing machine is electrically connected with single-chip microcomputer respectively, two output terminals of turnover signal recognition circuit are connected with two I/O mouths of single-chip microcomputer, wireless (wired) transmitter module of terminal device by wireless (wired) mode with data transmission to main control end, the main control end video data also is summarized in data by LAN (Local Area Network) and gathers terminal.

2. statistic system of quantity of people in building rooms according to claim 1, it is characterized in that: detecting module utilizes the RE200B pyroelectric detector to realize the detection of human infrared radiation, utilize LM324 to do signal amplification, differential, the identification of turnover signal, identify going into of personnel or go out by single-chip microcomputer, the current number that adds deduct accordingly, and be transferred to main control end by the wireless or wired mode of serial.

3. statistic system of quantity of people in building rooms according to claim 1, it is characterized in that: wireless or wired mode receives in these building each room number situation and is shown on the giant-screen main control end by serial, and all data are gathered on the terminal computer by LAN (Local Area Network) transmission data.