CN202615205U - Intelligent managing and monitoring device for laboratory instruments based on Internet of Things - Google Patents
Intelligent managing and monitoring device for laboratory instruments based on Internet of Things Download PDFInfo
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- CN202615205U CN202615205U CN2012201983849U CN201220198384U CN202615205U CN 202615205 U CN202615205 U CN 202615205U CN 2012201983849 U CN2012201983849 U CN 2012201983849U CN 201220198384 U CN201220198384 U CN 201220198384U CN 202615205 U CN202615205 U CN 202615205U
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Abstract
The utility model discloses an intelligent managing and monitoring device for laboratory instruments based on the Internet of Things, comprising an instrument electricity utilization monitor, a network access point, and a central control processor, wherein the instrument electricity utilization monitor is used for identifying working instruments and the electricity utilization conditions thereof according to the input voltages and currents of the instruments, and finishing the switch-on and switch-off of power supply for the instruments according to on-off control or an appointed instruction; and the network access point is used for data forwarding between the instrument electricity utilization monitor and the central control processor; and central control processor is used for processing the instrument identification results, and receiving external on-off control or an external appointed instruction. The intelligent managing and monitoring device disclosed by the utility model can be used for realizing efficient and safe monitoring for laboratory instruments and equipment, and really and effectively implementing equipment management activities in case of no change on the interior structures of the laboratory instruments.
Description
Technical field
The utility model relates to a kind of intelligent Laboratory Instruments management and monitoring device based on Internet of Things.
Background technology
The quantity of China's Scientific Research in University Laboratory ranks first in the world.But because aspects such as management systems, functional positioning, be not fully used in the laboratory, and problem such as ubiquity laboratory input is not enough, management system lags behind, plant factor is low.Laboratory Instruments equipment use and management all the time all is that this way to manage exists many shortcomings through conventional artificial management, as: efficient is low, poor accuracy etc.The behaviour in service of Laboratory Instruments equipment is difficult to digitizing, more is difficult to accomplish in real time, effectively manages.In addition As time goes on, with the file and the data that produce a large amount of manual work records, this is for searching, upgrade and safeguarding and all brought many difficulties.Meanwhile; Because the student uses instrument and equipment to have the reason of randomness and popularity; Cause Scientific Research in University Laboratory exist at present the set time open, fixedly experimental apparatus can be used and all irrational phenomenons of the public experimental apparatus of many people, the target of this and colleges and universities " opening experiment chamber " is disagreed.
Be accompanied by the fast development of Internet of Things; Though each big instrument and equipment production firm develops a new generation with information interaction instrument and equipment based on Internet of Things; But it is too big still to satisfy the new experimental instrument and equipment expense concerning the laboratory of domestic each big colleges and universities of large batch of update under the laboratory requirement at existing instrument and equipment; Can not be exhaustive, and still fail to realize the target of efficient " unattended opening experiment chamber ".So the management of Scientific Research in University Laboratory instrument and equipment has run into insoluble bottleneck.
The utility model content
The purpose of the utility model is to provide a kind of intelligent Laboratory Instruments management and monitoring device based on Internet of Things, under the situation of not changing current experiments instrument internal structure, realizes the highly effective and safe monitoring of Laboratory Instruments equipment.
Based on the intelligent Laboratory Instruments management and monitoring device of Internet of Things, comprise one and more than one instrument power monitoring device, Network Access Point and center processor controls,
Instrument power monitoring device; The one of which end connects general supply; The other end connects instrument through wiring board; The input voltage and the electric current that are used for acquisition instrument according to voltage and current signal identification work apparatus and electricity consumption situation thereof, will comprise the work apparatus that is identified and the wireless Network Access Point of giving of instrument recognition result of electricity consumption situation; The switch control of wireless receiving Network Access Point or reservation instruction are accomplished cut-offfing the instrument power supply according to switch control or reservation instruction;
Network Access Point is used for the instrument recognition result of wireless receiving instrument electricity consumption monitoring, sends the instrument recognition result to the center processor controls through Ethernet; Through the switch control or the reservation instruction of Ethernet receiving center controller, will control or preengage the wireless instrument power monitoring device that sends to of instruction;
The center processor controls is used for receiving through Ethernet the instrument recognition result of Network Access Point, and passes through display screen display instrument recognition result; Receive external switch control or reservation instruction, and send switch control or reservation instruction to Network Access Point through Ethernet.
Further, said instrument power monitoring device comprises sampling modulate circuit, instrument identification circuit, radio communication circuit, on-off circuit and power supply interface; The input end of power supply interface connects general supply, and the output terminal of power supply interface connects instrument through wiring board; The input end of sampling modulate circuit connects the output terminal of power supply interface, and the output terminal of sampling modulate circuit connects instrument identification circuit, radio communication circuit and on-off circuit successively.
Further, said instrument identification circuit comprise processor with and the card reader of joining.
Further, said Network Access Point comprises wireless transceiver circuit, microprocessor and Ethernet interface; Wireless transceiver circuit wireless connections instrument power monitoring device, microprocessor connects wireless transceiver circuit and Ethernet interface respectively.
The technique effect of the utility model is embodied in:
Instrument identification: existing all purpose instrument recognition methods is at each power import monitoring electric parameter with instrument.Though can reach corresponding target like this, on the high side, complicacy is installed, feasibility is relatively poor.And the utility model proposes the recognition methods based on bus current; Promptly only a power import of multiple unification with instrument is detected and handles, be a kind of more low-cost, installation simply, the higher scheme of feasibility realizes instrument recognition function more widely.
Parameter is analyzed: it is not enough that instrument only identifies, and also need carry out further electrical quantity analysis to the instrument that identifies.Need combine the real-time parameter of instrument to come COMPREHENSIVE CALCULATING to draw the electric energy of its consumption with data in advance.This just relates to the storage of relevant mass data, to processing of data or the like.The utility model can carry out detailed detection to the consumption of user's electric energy; Especially the metering of electric energy is refine to each and use instrument; So just can variously carry out the statistics of duty to different types of in the laboratory with instrument, and according to the electricity consumption strategy of the laid down by energy-saving safe of duty.
Man-machine interaction: the man-machine interactive platform that quick close friend is provided; The operation conditions of each experimental instrument and equipment in the real-time pump back test chamber; Show that in real time breadboard topological diagram is to reach the purpose of the position of reflecting each experimental apparatus; Real-time and instrumentation database carries out information interaction and dynamically updates, and can conveniently accept administrator's instruction.The human-computer interaction interface of clear good reservation Laboratory Instruments equipment is provided, and the experimenter can preengage Laboratory Instruments equipment according to self-demand.
The utility model proposes the integrated complete intelligent management scheme to existing instrument state inquiry, real-time management, for unattended open-type lab provides a kind of possibility.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the instrument power monitoring device of the utility model;
Fig. 3 is the voltage sampling circuit synoptic diagram of the instrument power monitoring device of the utility model;
Fig. 4 is the current sampling circuit synoptic diagram of the instrument power monitoring device of the utility model;
Fig. 5 is the weighting recognizer synoptic diagram based on threshold value of the instrument power monitoring device of the utility model;
Fig. 6 is the structural representation of the cutting increased enrollment of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
As shown in Figure 1, this intelligent Laboratory Instruments management and monitoring device comprises one and more than one instrument power monitoring device, Network Access Point (AP) and central control unit.
Instrument power monitoring device is used for the input voltage and the electric current of acquisition instrument, discerns work apparatus according to the voltage and current signal, and sends recognition result to Network Access Point AP; Receive the switch order of Network Access Point (AP), accomplish opening or turn-offing realizing the safety management or the reservation of instrument are cut-off its instrument according to steering order.Fig. 2 has provided the structural drawing of instrument power monitoring device, and instrument power monitoring device is made up of sampling modulate circuit, instrument identification circuit, radio communication circuit, on-off circuit and power supply interface.Traditional to being to carry out sampling analysis with the instrument power source access port with the inquiry of the duty of instrument and management at each; This is as far as having the more instrument of using in the laboratory; Realization is huge with input to the real-time follow-up cost of every Instrument working state, and device power monitoring device only need be placed in the different types of multiple instrument of using on this experiment table of management on each experiment table.Therefore can reach purpose to the dynamic management of experimental apparatus.The power supply of instrument power monitoring device power supply can be through the supply standard 220V power supply of common family expenses electrical appliance, and the different types of instrument on the platform of laboratory can draw to be connected on the wiring board through a power supply interface 3-phase plug of the unification on the instrument power monitoring device supplies power.
Input voltage when the sampling modulate circuit is used for instrument worked and electric current is sampled and pre-service comprises voltage sample modulate circuit and current sample modulate circuit.The sampling modulate circuit is to the Sampling Machine of carrying out electric parameter to a power supply port of the unification of different types of instrument on the instrument power monitoring device.Fig. 3 has provided an instance of voltage sample modulate circuit; The voltage sample modulate circuit is that core constitutes with voltage transformer (VT) TVA1421-01 in the instance; This voltage transformer (VT) is a current mode; Earlier voltage transitions to be measured is become the primary side of current signal input mutual inductor, resistance R 27 converts the output current of mutual inductor secondary side into voltage signal.Resistance R 27 constitutes low-pass filter with shunt capacitance C59.The output signal of amplifier U10 is divided into three the tunnel: the one road and delivers to zero cross detection circuit, and sinusoidal signal is converted into and the square-wave signal of instrument voltage with the frequency homophase.Because of there is burr in zero crossing, so locate to select for use the hysteresis comparator that constitutes by comparer LM311 to realize zero passage detection and square wave shaping.Another road is a peak detection circuit, detects the maximal value of real-time voltage, in four/one-period that the positive half cycle of importing sinusoidal signal rises, and the output triode conducting of comparer LM311, the voltage follow input sinusoidal signal at electric capacity two ends; When sinusoidal signal after peaking, the output triode of comparer LM311 ends, the voltage at electric capacity two ends remains the peak value of input sinusoidal signal, waits for the single-chip microcomputer sampling; After the single-chip microcomputer sampling, the output high level signal, the Q1 conducting keeps capacitor discharge to peak value.Last road is the real-time voltage sample circuit, and the alternating voltage of voltage transformer (VT) output is raised 2.5V, delivers to the instrument identification circuit.Fig. 4 has provided an instance of current sample modulate circuit; Adopt current Hall sensor TBC05SY to isolate sampling in the instance; This current Hall is used the current sensor of Hall effect closed loop principle, can under electrically isolated condition, measure the electric current of direct current, interchange, pulse and various irregular waveforms.Sensor parameters: < 0.1%, < 0.7%, the response time, < 1us, bandwidth 200KHz all satisfied this measurement requirement to precision to the linearity.Adopting the sample benefit of relative current transformer of Hall is to detect the DC component of grid-connected current, and can pass through software in time with its elimination.The current Hall output AC voltage, it is raised 2.5V through adding circuit after, send into the instrument identification circuit.
The instrument identification circuit receives the electric current and the voltage signal of sampling conditioning electricity output, carries out instrument identification according to electric current and voltage signal, and sends recognition result to communication pairing circuit.The card reader that the instrument identification circuit comprises processor and joins with it.Before native system work; The facility information typing instrument identification circuit that at first need will be managed; Therefore give the general rfid card of each devices allocation one total system number,, and be pre-stored in from the storer of processor MSP430F5438 through the general ID of card reader fetch equipment.The instrument identification circuit carries out the processing of recognizer through the controller ADUC7026 with ARM7 framework in the instance of the utility model, confirms the electric power working, and sends it to communication pairing circuit.The instrument recognizer has adopted based on the weighting recognizer of threshold value and has conciliate two kinds of core algorithms of multidimensional system of linear equations in this instance.Prestore the characteristic parameter of each instrument in the storer of this instance primary processor ADUC7026, characteristic parameter comprises instrument ID, current peak, electric current average, current effective value, current first harmonics, current harmonics amplitude, current harmonics phase place, with instrument active power, current harmonics length etc.Current peak, electric current average are just handled and can be accessed current data in real time when sampling.And characteristic parameters such as current effective value, first-harmonic can obtain after Fast Fourier Transform (FFT) (FFT) conversion.After the FFT conversion, resulting data are not normalized as yet, can be restored in order to make normalization data, also need store each power information with instrument.Behind the electric current that master controller ADUC7026 receives sampling conditioning electricity output and the voltage signal, through ADUC7026 upward 12 analog to digital converters (ADC) of carrying of chip voltage and current signal is sampled.In the data sampling stage, do not get muddled in order to make system's runtime data, can only make system carve image data in due course.In data handling procedure, data sampling is need be forbidden.Yet, keeping certain consistance in order to guarantee each data handling procedure, must have benchmark the zero hour of sampling.Because instrument identification circuit line voltage has been done zero passage detection, voltage just passing zero moment is that data sampling provides possibility.Based on above analysis; Whether the concrete grammar of implementing data sampling: setting up zone bit Data_hold to be used for designation data needs to keep if being; Putting 1 system thinks and needs to keep; It occurs over just the moment that data are adopted full 256 points, puts 0 and thinks that sampling can carry out sometime, and it occurs over just the moment that data processing finishes; Whether set up zone bit AD_enable to be used for indicating the AD sampling instant to arrive, putting 1, occur over just Data_hold, putting 0, to occur in Data_hold be moment of 1 if being 0 and moment of arriving constantly of voltage zero-cross.For satisfying under the 50Hz mains frequency, the demand of 256 points of one-period sampling has been set the timer of a 20000/256us.It is poor after sampling is accomplished to do this sampled data and last sampled data; Draw this sampled data of newly-increased electrical appliance; After the data of the electric current that obtains sampling; Advance the Forbidden City Fast Fourier Transform (FFT) (FFT), can extract characteristic parameter: the real part of this subharmonic after the imaginary part of this subharmonic, the FFT conversion after total harmonic length, overtone order, the FFT conversion., again with relevant parameter in these parameters and the storer relatively, in order to reach the purpose with instrument identification, this instance adopts the weighting recognizer method based on threshold value shown in Figure 5.At first carry out fuzzy algorithm relatively to the analog value in a certain characteristic parameter and the existing storer, if eigenwert is very good with existing value coupling, then provide a very high score value, the mark of beating along with the decline of matching degree also reduces accordingly.Then, to the recognition result of every kind of characteristic parameter obfuscation, all obtain the corresponding matched coefficient, matching factor multiply by this parameter and occupies score value, can obtain the score of this parameter.At last, with the score addition of all characteristic parameters, promptly obtain the coupling score value of this work apparatus.Use instrument for every kind in the storer, all can obtain a corresponding score value, through the comparison of maximum score value and qualifying score value, decision is with whether success of instrument identification.If maximum score value has exceeded definition and ruling, think that then system instrument discerns successfully, recognition result is and obtains the pairing instrument of using of largest score.According to the instantaneous power of the electric characteristic calculation of parameter of extracting with instrument, the interior instrument recognition result that will comprise instrument internal ID and instantaneous power sends the pairing circuit of communicating by letter to.
Radio communication circuit is used for the wireless Network Access Point that sends to of the instrument recognition result of instrument identification circuit.In addition,, also receive the switch control or the reservation instruction of the Network Access Point of transmitting through radio communication circuit (AP) in order to realize reservation or safety management to instrument, and then the opening or turn-off to realize cut-offfing instrument of CS circuit.
In this instance, the media access control protocol that the communication protocol of radio communication circuit has been used for reference CSMA/CD contention type utilizes radio communication circuit LSDRF43010M01 to carry out MANET.And formulated collision algorithm and the frame format that meets self system requirements.For the problem of managing conflict; Used for reference the media access control protocol of CSMA/CD contention type, carried out primary carrier earlier before sending and monitor, as if channel idle this moment; Then one short period of random delay is carried out the primary carrier monitoring again; If this moment, channel was still idle, can think that so interior channel of this time period does not disturb, can the transmit frame data.
On-off circuit is serially connected in the power interface of instrument, and when instrument is in up-set condition, then on-off circuit turn-offs, and device powers down quits work.Arrive when the booking work time, then on-off circuit is open-minded, and the instrument power supply starts.On-off circuit can adopt elements such as continue instrument and Darlington transistor to realize.
Network Access Point (AP) is used for the final instrument recognition result of each instrument power monitoring device of wireless receiving, and utilizes LAN to send it to information center's controller; The switch control or the reservation instruction of central control unit are transmitted to instrument power monitoring device.Network Access Point (AP) comprises wireless transceiver circuit, microprocessor and Ethernet interface.Leading subscriber is understood the working condition of each equipment in real time for ease, can set up a user inquiring interface.The concrete realization of Network Access Point can be employed in the embedded development platform of ARM9 framework and realize.
The center processor controls comprises the webserver, device databases, reservation databases and user management center.Device databases is used to store final instrument recognition result; Reservation databases is used for the memory device reservation recording, and the user management center is used for the input of shutoff instruction of working condition, device reservation instruction input and device reservation record queries, the potential safety hazard instrument of the on-the-spot query facility of user.The webserver is used for the input of shutoff instruction of working condition, device reservation instruction input and device reservation record queries, the potential safety hazard instrument of user's remote inquiry equipment.Data management system is capable of using to be realized based on embedded development platform (the for example embedded development platform of x86 framework).Database can adopt the MySQL database; For leading subscriber provides friendly interface; Make the administrator buy when logining the storehouse quick, clear and register the instrument full detail exactly at instrument; And set up reliable and stable TCP through the breadboard Network Access Point of LAN and each (AP) and be connected, need not manual intervention and handle, Real-time and Dynamic is upgraded the position and the power information of every instrument.The real realization implements to every experimental instrument and equipment from buying to the intelligent management of the mobilism of using, and makes easy and convenient position that traces into every experimental instrument and equipment of leading subscriber and electricity consumption behavior.
The utility model is devoted to provide intelligence Laboratory Instruments device reservation to use and the solution of dynamic management; But and can require and the modular collocation configuration of the easy expansion of the cutting of different experiments personnel demand according to different experiments chamber scale, different administrator; Fig. 6 has provided the system architecture diagram after the expansion, and Network Access Point in the utility model (AP) and instrument power monitoring device provide multiple communication interface; The utility model total system can be expanded and be divided into three-decker, through the structured management of layering, but can formulate a whole set of complete Laboratory Instruments equipment control scheme of the cutting that is prone to expansion according to the demand of different experiments chamber.
Those skilled in the art will readily understand; The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (4)
1. based on the intelligent Laboratory Instruments management and monitoring device of Internet of Things, it is characterized in that, comprise one and more than one instrument power monitoring device, Network Access Point and center processor controls,
Instrument power monitoring device; The one of which end connects general supply; The other end connects instrument through wiring board; The input voltage and the electric current that are used for acquisition instrument according to voltage and current signal identification work apparatus and electricity consumption situation thereof, will comprise the work apparatus that is identified and the wireless Network Access Point of giving of instrument recognition result of electricity consumption situation; The switch control of wireless receiving Network Access Point or reservation instruction are accomplished cut-offfing the instrument power supply according to switch control or reservation instruction;
Network Access Point is used for the instrument recognition result of wireless receiving instrument electricity consumption monitoring, sends the instrument recognition result to the center processor controls through Ethernet; Through the switch control or the reservation instruction of Ethernet receiving center controller, will control or preengage the wireless instrument power monitoring device that sends to of instruction;
The center processor controls is used for receiving through Ethernet the instrument recognition result of Network Access Point, and passes through display screen display instrument recognition result; Receive external switch control or reservation instruction, and send switch control or reservation instruction to Network Access Point through Ethernet.
2. the intelligent Laboratory Instruments management and monitoring device based on Internet of Things according to claim 1 is characterized in that, said instrument power monitoring device comprises sampling modulate circuit, instrument identification circuit, radio communication circuit, on-off circuit and power supply interface; The input end of power supply interface connects general supply, and the output terminal of power supply interface connects instrument through wiring board; The input end of sampling modulate circuit connects the output terminal of power supply interface, and the output terminal of sampling modulate circuit connects instrument identification circuit, radio communication circuit and on-off circuit successively.
3. the intelligent Laboratory Instruments management and monitoring device based on Internet of Things according to claim 2 is characterized in that, said instrument identification circuit comprise processor with and the card reader of joining.
4. the intelligent Laboratory Instruments management and monitoring device based on Internet of Things according to claim 1 is characterized in that said Network Access Point comprises wireless transceiver circuit, microprocessor and Ethernet interface; Wireless transceiver circuit wireless connections instrument power monitoring device, microprocessor connects wireless transceiver circuit and Ethernet interface respectively.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439952A (en) * | 2013-08-30 | 2013-12-11 | 苏州庚商教育智能科技有限公司 | Experimental equipment state monitoring system |
| CN103728939A (en) * | 2013-12-20 | 2014-04-16 | 江苏金太生命科技有限公司 | Device state monitoring system based on PCR instrument |
| CN103744357A (en) * | 2013-09-16 | 2014-04-23 | 北京理工大学 | Laboratory safety wireless monitoring method and system |
| CN106707868A (en) * | 2016-12-30 | 2017-05-24 | 安徽朋德信息科技有限公司 | Power control method and power control system for shared experiment instrument |
| CN108494770A (en) * | 2018-03-23 | 2018-09-04 | 成都泰盟软件有限公司 | A kind of intelligent network power-supply management system and method |
| CN109886366A (en) * | 2019-01-09 | 2019-06-14 | 天津大学 | Laboratory Monitoring management system and method based on RFID and Python |
| CN111860911A (en) * | 2020-07-21 | 2020-10-30 | 水利部交通运输部国家能源局南京水利科学研究院 | Intelligent supervision reservation system for large-scale fixed scientific research equipment and use method thereof |
-
2012
- 2012-05-04 CN CN2012201983849U patent/CN202615205U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439952A (en) * | 2013-08-30 | 2013-12-11 | 苏州庚商教育智能科技有限公司 | Experimental equipment state monitoring system |
| CN103744357A (en) * | 2013-09-16 | 2014-04-23 | 北京理工大学 | Laboratory safety wireless monitoring method and system |
| CN103728939A (en) * | 2013-12-20 | 2014-04-16 | 江苏金太生命科技有限公司 | Device state monitoring system based on PCR instrument |
| CN106707868A (en) * | 2016-12-30 | 2017-05-24 | 安徽朋德信息科技有限公司 | Power control method and power control system for shared experiment instrument |
| CN106707868B (en) * | 2016-12-30 | 2019-07-12 | 安徽朋德信息科技有限公司 | The power control method and power control system of shared laboratory apparatus |
| CN108494770A (en) * | 2018-03-23 | 2018-09-04 | 成都泰盟软件有限公司 | A kind of intelligent network power-supply management system and method |
| CN109886366A (en) * | 2019-01-09 | 2019-06-14 | 天津大学 | Laboratory Monitoring management system and method based on RFID and Python |
| CN111860911A (en) * | 2020-07-21 | 2020-10-30 | 水利部交通运输部国家能源局南京水利科学研究院 | Intelligent supervision reservation system for large-scale fixed scientific research equipment and use method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20150504 |
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| EXPY | Termination of patent right or utility model |