CN200997157Y

CN200997157Y - Seat monitor

Info

Publication number: CN200997157Y
Application number: CN 200620168288
Authority: CN
Inventors: 万川; 武传胜; 迟呈英; 徐作起
Original assignee: University of Science and Technology Liaoning USTL
Current assignee: University of Science and Technology Liaoning USTL
Priority date: 2006-12-19
Filing date: 2006-12-19
Publication date: 2007-12-26
Anticipated expiration: 2016-12-19

Abstract

A seat monitoring device is provided, which comprises a switch, a human body infrared thermal release module, a trigger module, a timing module, prompt control module and a reminder light. The utility module is characterized in that: the human body infrared thermal release module is connected with the trigger module and the timing module; the timing module is connected with the prompt control module.

Description

The seat supervising device

Technical field the utility model relates to a kind of seat supervising device, is mainly used in the lose one's seat monitoring of usefulness of some public places, belongs to the monitoring technique field.

Lose one's seat in some public places at present phenomenon of usefulness of background technology is very serious, library particularly, often have to leave after classmate's occupy-place and for a long time need not, and the classmate who has study does not have the seat, the resource that has not only influenced classmate's study but also wasted the library, other public places such as railway station, cinema, also there is this type of phenomenon in parks etc., have influenced the use of communal facility.

Summary of the invention the utility model is to disclose seat supervising device a kind of simple in structure, easy to use, cheap, and this device is installed near the seat, is used to point out the seat user, and this seat no one uses operable information.

Feature of the present utility model is that the seat supervising device is made up of switch 1, human body infrared thermal releasing module 2, trigger module 3, timing module 4, prompting control module 5, warning light 6.Human body infrared thermal releasing module links to each other with trigger module, timing module, and timing module links to each other with the prompting control module.When leaving, switch enters monitor state; Someone is (the elevation angle 75 degree near in the human body infrared thermal releasing module search coverage on the seat supervising device time, radius 20CM), have signal to produce to trigger module, the trigger module output low level is given timing module, the timing module non-output signal that resets, the prompting control module does not start warning light and does not work; When the people left in the human body infrared thermal releasing module search coverage on the seat supervising device, trigger module output high level was given timing module, and timing module picks up counting, and it is bright that timing time starts warning light for the prompting control module to the output high level.

Description of drawings Fig. 1 is a seat supervising device structural drawing; Fig. 2 is the circuit diagram of seat supervising device.

Embodiment is shown in Figure 1, and the seat supervising device is made up of switch 1, human body infrared thermal releasing module 2, trigger module 3, timing module 4, prompting control module 5, warning light 6.It is characterized in that human body infrared thermal releasing module links to each other with trigger module, timing module, timing module links to each other with the prompting control module.Switch 1 can be installed in the place of handled easily, and human body infrared thermal releasing module 2 is installed near the seat.

Shown in Figure 2, this installs described human body infrared thermal releasing module 2 and mainly is made up of IC1, R1, R2, C1, IC1 is human body infrared thermal releasing module HN911L, and its inside has: high sensitivity infrared sensor, high-efficient low-noise amplifier, temperature-compensation circuit, signal comparator circuit, delay circuit, high-low level driving circuit etc.The 1 pin output low level of IC1 when static, late-class circuit is not worked.The 2 pin output high level of IC1 makes the back level be in reset mode.The not adhesive of relay J no current, pilot lamp 6 does not work.R1 is for surveying sensitive adjustable resistance.

Shown in Figure 2, this installs described trigger module 3 mainly is made up of IC, C3, R4 etc., and IC2 is DA175, and when IC2 2 pin input high levels, output terminal 3 pin are low level.2 pin jump to low level by height, 3 pin output high level, and capacitor C 5 chargings are after being charged to certain hour, the monostable circuit upset, stable state finishes temporarily, and 3 pin saltus steps are low level, the C5 discharge, the discharge delay time can be changed by R6 and C5, and delay time can be adjustable in several minutes.

Shown in Figure 2, this installs described timing module 4 mainly is made up of IC3, R3, C2 etc., and IC3 forms for d type flip flop T076, and single d type flip flop is connected into counter status.And with Q end and D phase failure company.This circuit only with a D end, let alone unsettled, or they are together in parallel, and is connected to positive source by 1k resistance by other pins.

Shown in Figure 2, this installs described prompting control module 5 mainly by relay J control pilot lamp.

Under the normal condition, when leaving, switch 1 enters monitoring; Someone is (the elevation angle 75 degree near in the human body infrared thermal releasing module search coverage on the seat supervising device time, radius 20CM), have signal to produce to trigger module, the trigger module output low level does not start warning light and does not work for timing module, the timing module prompting control module that resets; When the people left in the human body infrared thermal releasing module search coverage on the seat supervising device, trigger module output high level was given timing module, and timing module picks up counting, and it is bright that timing time starts warning light to the prompting control module.As the people once more near the human body infrared thermal releasing module search coverage on the seat supervising device in the time, warning light does not work and extinguishes.Unmanned timing time can be regulated, and also can regulate in the search coverage.

Claims

1, seat supervising device, comprise switch, human body infrared thermal releasing module, trigger module, timing module, prompting control module, warning light composition, it is characterized in that human body infrared thermal releasing module links to each other with trigger module, timing module, timing module links to each other with the prompting control module.

2, seat according to claim 1 supervising device is characterized in that said human body infrared thermal releasing module is linked to each other with human body infrared thermal releasing resistance (R1) by (IC1).

3, seat according to claim 1 supervising device is characterized in that said timing module mainly is made up of single d type flip flop.