CN205384693U - Library is from seat time monitoring system - Google Patents

Abstract

The utility model discloses a library is from seat time monitoring system, including information acquisition module, timing module, control and indicating module, entire system has utilized weighing sensor output to present proportional change's characteristic in the hope of being improved along with the pressure that bears, the utility model is suitable for an among the library seat management system, the change of the output voltage value that can lead to according to pressure variation, whether accurate judgement personnel are from the seat to in time begin or stop the timing, the seat in service behavior is reflected from the seat time in real time to the monitoring personnel, improves the resource utilization rate of library.

Description

Library disseats time supervision system

Technical field

This utility model belongs to technical field of electric power, refers more particularly to a kind of library and disseats time supervision system.

Background technology

Library environment peace and quiet are comfortable, are the desirable places to go reviewed one's lessons of university students.But whenever examination season, always overstaffed, a difficulty is asked, and even therefore causes contradiction and disputes.The reason causing this phenomenon is that malice accounts for seat first.Some classmate can not voluntary observance library regulation, although busy leave for a long time, but will stay on seat by the personal effects such as books, even there is a people and accounts for multiple seat but nobody goes the phenomenon of study.These behaviors cause other people cannot utilize seat, have both compromised other people interests, also result in the waste of Library Resources.

Existing seat Management System of Library mainly has an intelligent management system such as labor management system and bit selecting machine, but equal Shortcomings.Labor management needs manager to devote considerable time energy, and is difficult to the judgement person of reviewing one's lessons and is away from keyboard or leaves for a long time；The intelligent management systems such as bit selecting machine have a suitable advantage at reservation seating issues, but conscious when the monitoring of the time that disseats disseats mainly by student swipe the card, it is difficult to really stop malice and account for the phenomenon of seat.

Therefore, being highly desirable to disseat matter of time a kind of monitoring system of research for the person of reviewing one's lessons, do not rely on the self awareness of the person of reviewing one's lessons, accurate recording disseats the time, and indicates the seat that time-out is not returned, in order to other classmates utilize.

Utility model content

For the deficiency of existing seat Management System, this utility model provides a kind of library to disseat time supervision system.

1. this utility model adopts the technical scheme that: a kind of library disseats time supervision system, including information acquisition module, controls and indicating module and timing module；

Described information acquisition module includes some observation circuits, signal pre-processing circuit and A/D converter；Observation circuit outfan and signal pre-processing circuit A/D converter are sequentially connected with；

Described observation circuit includes a low-voltage dc power supply and some miniature LOAD CELLSs, and two terminals of described miniature LOAD CELLS are connected with low-voltage dc power supply, and its outfan is observation circuit outfan；

Described control and indicating module include controller, regulated power supply, some display lamps, host computer, manual control panel and terminal display；Described regulated power supply, display lamp, host computer, manual control panel, terminal display are connected with controller respectively；

Described timing module includes timing circuit and reset circuit；Described timing circuit and reset circuit are bi-directionally connected with controller respectively.

Preferably, two areas of first three point of each seat seat are evenly arranged 45 miniature LOAD CELLSs, are in parallel each other, share low-voltage dc power supply.

Preferably, namely described timing module enters idle condition, repeatable utilization after the reset, and required timing circuit number is much smaller than seat number.

Preferably, described display lamp is made up of series of LED lamp, towards librarian；Described terminal display can show seat service condition, towards the person of reviewing one's lessons.

Compared with prior art, this utility model has the following characteristics that

Intelligent: compared with the method for labor management, given device can automatic after presetting work, and decreases the workload of management personnel, and library is without devoting considerable time and seat is managed by money again.

With a high credibility: compared with the intelligent management system such as bit selecting machine, to device, institute utilizes whether the miniature LOAD CELLS monitoring person of reviewing one's lessons leaves seat, sensitivity is strong, and reliable in quality has mandatory, it is not necessary to depend on the self awareness of the person of reviewing one's lessons simultaneously.

Motility is strong: compared with other seat Management System of Library, given device can preset the time upper limit that disseats of different periods by manual control panel, can properly increase, according to practical situation, the time upper limit that disseats in lunch break or suppertime, flexible, hommization more.

High efficiency: compared with other seat Management System of Library, the seat numbering that unmanned use or time-out are not returned can be supplied to the person of reviewing one's lessons by given device in terminal display, decrease the process manually looked for, improve work efficiency, make Library Resources utilization rate maximize as much as possible simultaneously.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

In Fig. 1,1-information acquisition module, 2-controls and indicating module, 3-timing module, 4-display lamp, 5-controller, 6-host computer, 7-terminal display, 8-regulated power supply, 9-manual control panel, 10-timing circuit, 11-reset circuit；

Fig. 2 is information acquisition module structural representation；

In Fig. 2,12-low voltage direct current source, the miniature LOAD CELLS of 13-, 14-signal pre-processing circuit, 15-A/D sensor, 16-observation circuit.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, this utility model is described further.

Seeing Fig. 1, this utility model be the technical scheme is that, a kind of library disseats time supervision system, including information acquisition module 1, controls and indicating module 2, timing module 3.

Information acquisition module

Seeing Fig. 2, information acquisition module 1 of the present utility model includes some observation circuits 16, signal pre-processing circuit 14 and A/D converter 15；Observation circuit 16 outfan output signal, through signal pre-processing circuit 14, arrives A/D converter 15, then is sent to control and indicating module 2.Described observation circuit 16 includes a low-voltage dc power supply 12 and some miniature LOAD CELLSs 13, and two terminals of miniature LOAD CELLS 13 are connected with working power 12, and its outfan is observation circuit outfan.

In being embodied as, in conjunction with human normal sitting posture, two places of first three point of the seat at each seat of library are evenly arranged 4-5 miniature LOAD CELLS 13, it is desirable to its scope of weighing is more than general body weight.When there being people to review one's lessons on seat, miniature LOAD CELLS 13 about bears the weight of human body 1/3rd, and output voltage values is relatively big, through signal pre-processing circuit 14 and A/D sensor 15, analog quantity converts to digital quantity and is transferred to control and indicating module 2.

When on seat, people leaves, miniature LOAD CELLS 13 bears pressure and is likely zero or for school bag weight, and much smaller than the weight born when having a people, output voltage values is less, through signal pre-processing circuit 14 and A/D sensor 15, analog quantity is converted to digital quantity and is transferred to control and indicating module 2.

Control and indicating module

Control of the present utility model and indicating module 2 include controller 5, regulated power supply 8, some display lamps 4, host computer 6, manual control panel 9 and terminal display 7；Described regulated power supply 8, display lamp 4, host computer 6, manual control panel 9, terminal display 7 are connected with controller 5 respectively.Described A/D converter 15 communicates information to controller 5.The information that information acquisition module 1 and timing module 3 are delivered to herein is processed by this module, and the signal of comprehensive manual control panel and host computer, seat service condition is shown on display lamp and terminal display screen.

The signal transmitted from information acquisition module 1 is admitted to controller 5, controller 5 judge that seat bears pressure size, determines whether whether someone uses at seat.If someone, without timing, it is not necessary to transmit signal to timing module 3, transmit signal to terminal display simultaneously, show that this seat is in use state；If nobody uses, need to transmit signal to timing module 3, start timing.

The signal transmitted from timing module 3 is admitted to controller 5, controller 5 judge whether time-out.If not overtime, then transmit signal to timing module 3, stop timing and reset；If overtime, then send signal to display lamp 4 and terminal display 7, make timing module stop timing and reset simultaneously.

System is controlled according to practical situation by manual control panel 8 by managerial personnel of library, presets the time upper limit that disseats；Host computer 6 and other management systems of library are connected with each other, it is simple to unified management；Regulated power supply 8 controls for the whole series and indicating module provides power supply, it is ensured that its normal operation；Display lamp 4 is made up of series of LED lamp, and when the person's of the reviewing one's lessons time-out on certain seat is not returned, corresponding display lamp is bright, goes to reclaim seat before reminding staff；Terminal display 7 is the intelligent terminal towards the person of reviewing one's lessons, and can show the use state at each seat.

Timing module

Timing module 3 of the present utility model includes timing circuit 10 and reset circuit 11；Described timing circuit 10 and reset circuit 11 are bi-directionally connected with controller 5.Controlled the duty of timing module 3 by controller 5, and through certain time interval transmit signal to controller, controller judge whether to change duty.

System Working Principle

We utilize LOAD CELLS output voltage values along with the characteristic self bearing pressure change in direct ratio, are distributed on library seats by miniature LOAD CELLS, judge whether really someone uses at seat by the change of output voltage values.

When unmanned use, output voltage values is little, now starts timing.If personnel do not return at the appointed time (the Miniature weighing device output voltage values that namely this seat is corresponding is maintained at relatively fractional value, it does not have change), then this seat can be recycled；If personnel return at the appointed time (the Miniature weighing device output voltage values that namely this seat is corresponding becomes big), then stop timing and reset.

Utilize this cover system, it is possible to conveniently do not review one's lessons person and find available position as early as possible, avoid malice in library to account for the phenomenon of seat simultaneously, improve the utilization rate of Library Resources, safeguard the interests of classmates.

Performance evaluation

Susceptiveness: in working range, the change of born pressure can be made quick reaction, the sensitive change reflecting output voltage values by this system, carries out timing in time or stops timing, provides seat service condition in real time.

Reliability: the manufacturing process of components and parts used by system has reached higher level, reliable in quality；Reasonable in design, installation specification is not high, and is easy to safeguard.

Accuracy: substantially, voltage variety is prone to monitoring to the change of set quantity of information；Observation circuit arranges maneuverability, can set up according to practical situation or reduce；Collect data promptly and accurately, it is determined that the time that disseats is more accurate.

The seat Management System of two kinds of Shortcomings described previously is currently mainly taked in view of library in China, and labor intensive material resources, can not accurately determining that personnel disseat the time, this system has highly sensitive, highly reliable, the plurality of advantages such as accuracy is high, therefore this system can being applied to library management system, it is possible to the shortcoming overcoming current commonly used method, record keeping personnel disseats the time, reflect the service condition of library seats in real time, improve resource utilization.

Claims (4)

1. a library disseats time supervision system, it is characterised in that:

Including information acquisition module (1), control and indicating module (2) and timing module (3)；

Described information acquisition module (1) includes some observation circuits (16), signal pre-processing circuit (14) and A/D converter (15)；Observation circuit (16) outfan and signal pre-processing circuit (14), A/D converter (15) are sequentially connected with；

Described observation circuit (16) includes a low-voltage dc power supply (12) and some miniature LOAD CELLSs (13), two terminals of described miniature LOAD CELLS (13) are connected with low-voltage dc power supply (12), and its outfan is observation circuit (16) outfan；

Described control and indicating module (2) include controller (5), regulated power supply (8), some display lamps (4), host computer (6), manual control panel (9) and terminal display (7)；Described regulated power supply (8), display lamp (4), host computer (6), manual control panel (9), terminal display (7) are connected with controller (5) respectively；

Described timing module (3) includes timing circuit (10) and reset circuit (11)；Described timing circuit (10) and reset circuit (11) are bi-directionally connected with controller respectively.

2. library as claimed in claim 1 disseats time supervision system, it is characterised in that:

Two areas of first three point of each seat seat are evenly arranged 45 miniature LOAD CELLSs (13), are in parallel each other, share low-voltage dc power supply (12).

3. library as claimed in claim 1 disseats time supervision system, it is characterised in that:

Described timing module (3) namely enters idle condition, repeatable utilization after the reset, and required timing circuit (10) number is less than seat number.

4. library as claimed in claim 1 disseats time supervision system, it is characterised in that:

Described display lamp (4) is made up of series of LED lamp, towards librarian；Described terminal display (7) can show seat service condition, towards the person of reviewing one's lessons.