CN202600458U - Laboratory power supply management system - Google Patents
Laboratory power supply management system Download PDFInfo
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- CN202600458U CN202600458U CN2012202201711U CN201220220171U CN202600458U CN 202600458 U CN202600458 U CN 202600458U CN 2012202201711 U CN2012202201711 U CN 2012202201711U CN 201220220171 U CN201220220171 U CN 201220220171U CN 202600458 U CN202600458 U CN 202600458U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a laboratory power supply management system. A terminal device corresponds to an experiment table. A server is connected with a PC. A first ZigBee module is connected with the PC through a USB module. The first ZigBee module and second ZigBee modules communicate with each other. Each second ZigBee module is connected with an experiment table power supply through a power supply monitoring module. Each ZigBee module is connected with the experiment table power supply through an over-current protection module. The advantages of the laboratory power supply management system are that, based on the ZigBee communication technology, a network is established through an coordinator, and all the devices are brought into the ZigBee network through terminal devices, so that a wireless communication network is formed, drawbacks of wired transmission between devices are prevented, the cost is relatively low, and the reliability is relatively good. Also, defects such as slow communication velocity and poor penetration capability in the prior art are overcome.
Description
Technical field
The utility model relates to a kind of laboratory power supply management system.
Background technology
Present laboratory power supply way to manage generally has two kinds, and a kind of is labor management, is characterized in that managerial personnel regularly determine a post, and the switching electricity is unified in the laboratory, and this mode has increased managerial personnel's workload greatly, nor energy savings; And another kind to be exactly computer house generally the adopt special-purpose system of a cover; This system is whether the mode with " IC+ password " is controlled the user and can be used a computer mostly, and is that main laboratory has also disposed a large amount of instrumentations except PC with the hardware designs.There is the wiring trouble in existing management system, and cost is high, is prone to problems such as impaired, is difficult to realize power supply control and monitoring effectively.
Summary of the invention
The utility model technical matters to be solved provides a kind ofly saves that wiring, cost are low, the laboratory power supply management system of good reliability.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of laboratory power supply management system; Comprise server, PC, telegon, a plurality of terminal device and a plurality of experiment table; The corresponding experiment table of terminal device; Described telegon comprises a USB module and a ZigBee module, and described terminal device comprises the 2nd ZigBee module, Power Monitoring Unit and overcurrent protection module, and described server is connected with PC; A described ZigBee module is connected with PC through the USB module; A described ZigBee module and the mutual communication of the 2nd ZigBee module, described the 2nd ZigBee module is connected with the experiment table power supply through described Power Monitoring Unit, and described the 2nd ZigBee module is connected with the experiment table power supply through described overcurrent protection module.
A described ZigBee module comprises that model is first chip and the peripheral circuit of CC2430; Described USB module comprises that model is second chip of FT245BM and the 3rd chip that model is 93C46; The 5V power supply is connected with the 8th pin of the 3rd chip, and the 4th pin of the 3rd chip is connected the 5th pin ground connection of described the 3rd chip through the 8th resistance with the 5V power supply; First pin of the 3rd chip is connected with the 32 pin of second chip; Second pin of the 3rd chip is connected with first pin of second chip, and the 3rd pin of the 3rd chip is connected with second pin of second chip
The 25 pin of second chip is connected with the 11 pin of first chip; The 24 pin of second chip is connected with the 12 pin of first chip; The 23 pin of second chip is connected with the 15 pin of first chip; The 22 pin of second chip is connected with the 16 pin of first chip, and the 21 pin of second chip is connected with the 17 pin of first chip, and the 20 pin of second chip is connected with the 18 pin of first chip; The 19 pin of second chip is connected with the 6th pin of first chip; The 18 pin of second chip is connected with the 5th pin of first chip, and the 16 pin of second chip is connected with the 4th pin of first chip, and the 15 pin of second chip is connected with the 3rd pin of first chip; The 14 pin of second chip is connected with second pin of first chip, and the 12 pin of second chip is connected with first pin of first chip.
Described the 2nd ZigBee module comprises that model is four-core sheet and the peripheral circuit of CC2430; Described Power Monitoring Unit comprises that second triode, the 3rd triode, relay and model are the photoelectrical coupler of P521; The 9th pin of four-core sheet is connected with the base stage of second triode through the 12 resistance, and the emitter of second triode is connected with VCC, and the collector of described second triode is connected with the base stage of the 3rd triode through the 13 resistance; The grounded emitter of the 3rd triode; The collector of the 3rd triode is connected with the coil of relay, and the switch stationary contact of relay is connected with the zero line of experiment table power supply
The 8th pin of four-core sheet is connected with the 4th pin of photoelectrical coupler; The 5th electric capacity is connected between the 3rd pin and the 4th pin of photoelectrical coupler; One of the 15 resistance terminates on the 4th pin of photoelectrical coupler; The other end of the 15 resistance is connected with VCC; First pin of photoelectrical coupler is connected with the live wire of experiment table power supply through the 6th resistance, and second pin of photoelectrical coupler is connected with the switch moving contact of relay, is connected with the 4th light emitting diode between first pin of photoelectrical coupler and second pin.
Described overcurrent protection module comprises that model is the operational amplifier of LM358; The 48 pin of four-core sheet is connected with first pin of operational amplifier through the 7th diode, and the positive pole of the 7th diode is connected with first pin of operational amplifier, and the negative pole of the 7th diode is connected with the 48 pin of four-core sheet; The negative pole of the 7th diode is through the 7th capacity earth; The negative pole of the 7th diode is through the 5th resistance eutral grounding, and the negative pole of the 7th diode is connected with second pin of operational amplifier, and the 8th pin of operational amplifier meets VCC; The 4th pin ground connection of operational amplifier; The 3rd pin of operational amplifier is connected with the 7th pin of operational amplifier, connects the 8th diode between the 5th pin of operational amplifier and the 6th pin, and the negative pole of the 8th diode is connected with the 6th pin of operational amplifier; The positive pole of the 8th diode is connected with the 5th pin of operational amplifier; Connect the 9th diode between the 5th pin of operational amplifier and the 6th pin, the positive pole of the 9th diode is connected with the 6th pin of operational amplifier, and the negative pole of the 9th diode is connected with the 5th pin of operational amplifier; Connect current transformer between the two poles of the earth of the 9th diode, current transformer is connected with the experiment table power supply.
Compared with prior art; The advantage of the utility model is to be based on the ZigBee communication technology, sets up a network through telegon, and brings all devices into the ZigBee network through terminal device; Form a wireless communication networks; Avoided the drawback of wire transmission between the equipment, cost is lower, and reliability is relatively good.Defectives such as traffic rate is slow in the prior art, penetration capacity is weak have also been overcome.
Description of drawings
Fig. 1 is the structured flowchart of the utility model;
Fig. 2 is the ZigBee module of the utility model or the circuit diagram of the 2nd ZigBee module;
Fig. 3 is the circuit diagram of the USB module of the utility model;
Fig. 4 is the circuit diagram of the Power Monitoring Unit of the utility model;
Fig. 5 is the circuit diagram of the overcurrent protection module of the utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
A kind of laboratory power supply management system; Comprise server 1, PC 2, fingerprint module 3, telegon, a plurality of terminal device and a plurality of experiment table 4; The corresponding experiment table 4 of terminal device, telegon comprises a USB module 5 and a ZigBee module 6, terminal device comprises the 2nd ZigBee module 7, Power Monitoring Unit 8 and overcurrent protection module 9; Server 1 is connected with PC 2; Fingerprint module 3 is connected with PC 2, and a ZigBee module 6 is connected a ZigBee module 6 and the 7 mutual communications of the 2nd ZigBee module through USB module 5 with PC 2; The 2nd ZigBee module 7 is connected with experiment table 4 power supplys through Power Monitoring Unit 8, and the 2nd ZigBee module 7 is connected with experiment table 4 power supplys through overcurrent protection module 9.
The one ZigBee module 6 comprises that model is first chip U1 and the peripheral circuit of CC2430; The USB module comprises that model is the second chip U2 of FT245BM and the 3rd chip U8 that model is 93C46; The 5V power supply is connected with the 8th pin of the 3rd chip U8, and the 4th pin of the 3rd chip U8 is connected the 5th pin ground connection of the 3rd chip U8 through the 8th resistance R 8 with the 5V power supply; First pin of the 3rd chip U8 is connected with the 32 pin of the second chip U2; Second pin of the 3rd chip U8 is connected with first pin of the second chip U2, and the 3rd pin of the 3rd chip U8 is connected with second pin of the second chip U2
The 25 pin of the second chip U2 is connected with the 11 pin of the first chip U1; The 24 pin of the second chip U2 is connected with the 12 pin of the first chip U1; The 23 pin of the second chip U2 is connected with the 15 pin of the first chip U1; The 22 pin of the second chip U2 is connected with the 16 pin of the first chip U1; The 21 pin of the second chip U2 is connected with the 17 pin of the first chip U1; The 20 pin of the second chip U2 is connected with the 18 pin of the first chip U1, and the 19 pin of the second chip U2 is connected with the 6th pin of the first chip U1, and the 18 pin of the second chip U2 is connected with the 5th pin of the first chip U1; The 16 pin of the second chip U2 is connected with the 4th pin of the first chip U1; The 15 pin of the second chip U2 is connected with the 3rd pin of the first chip U1, and the 14 pin of the second chip U2 is connected with second pin of the first chip U1, and the 12 pin of the second chip U2 is connected with first pin of the first chip U1.
The 2nd ZigBee module comprises that model is four-core sheet and the peripheral circuit of CC2430; Power Monitoring Unit comprises that the second triode Q2, the 3rd triode Q3, relay and model are the photoelectrical coupler U3 of P521; The 9th pin of four-core sheet is connected with the base stage of the second triode Q2 through the 12 resistance R 12, and the emitter of the second triode Q2 is connected with VCC, and the collector of the second triode Q2 is connected with the base stage of the 3rd triode Q3 through the 13 resistance R 13; The grounded emitter of the 3rd triode Q3; The collector of the 3rd triode Q3 is connected with the coil of relay, and the switch stationary contact of relay is connected with the zero line N of experiment table power supply
The 8th pin of four-core sheet is connected with the 4th pin of photoelectrical coupler U3; The 5th capacitor C 5 is connected between the 3rd pin and the 4th pin of photoelectrical coupler U3; One of the 15 resistance R 15 terminates on the 4th pin of photoelectrical coupler U3; The other end of the 15 resistance R 15 is connected with VCC; First pin of photoelectrical coupler U3 is connected with the live wire L of experiment table power supply through the 6th resistance R 6, and second pin of photoelectrical coupler U3 is connected with the switch moving contact of relay, is connected with the 4th light emitting diode D4 between first pin of photoelectrical coupler U3 and second pin.
Overcurrent protection module comprises that model is the operational amplifier U2A-U2B of LM358; The 48 pin of four-core sheet is connected with first pin of operational amplifier U2A-U2B through the 7th diode D7; The positive pole of the 7th diode D7 is connected with first pin of operational amplifier U2A-U2B; The negative pole of the 7th diode D7 is connected with the 48 pin of four-core sheet, and the negative pole of the 7th diode D7 is through the 7th capacitor C 7 ground connection, and the negative pole of the 7th diode D7 is through the 5th resistance R 5 ground connection; The negative pole of the 7th diode D7 is connected with second pin of operational amplifier U2A-U2B; The 8th pin of operational amplifier U2A-U2B meets VCC, the 4th pin ground connection of operational amplifier U2A-U2B, and the 3rd pin of operational amplifier U2A-U2B is connected with the 7th pin of operational amplifier U2A-U2B; Meet the 8th diode D8 between the 5th pin of operational amplifier U2A-U2B and the 6th pin; The negative pole of the 8th diode D8 is connected with the 6th pin of operational amplifier U2A-U2B, and the positive pole of the 8th diode D8 is connected with the 5th pin of operational amplifier U2A-U2B, meets the 9th diode D9 between the 5th pin of operational amplifier U2A-U2B and the 6th pin; The positive pole of the 9th diode D9 is connected with the 6th pin of operational amplifier U2A-U2B; The negative pole of the 9th diode D9 is connected with the 5th pin of operational amplifier U2A-U2B, meets current transformer K1 between the two poles of the earth of the 9th diode D9, and current transformer D1 is connected with the experiment table power supply.
The ZigBee module principle figure of the utility model is as shown in Figure 2, and module comprises CC2430 chip, crystal oscillator, resistance, electric capacity, inductance etc.C19, C18 are 22pF electric capacity, connect Y1 (32M) and constitute crystal oscillating circuit.C13, C17 are 22nF, and decoupling capacitance is used for power filter, to improve the stability of chip operation.C14, C15 are 15pF electric capacity, mate with Y2 (32.168KHz) crystal oscillator.C9 is 5.6pF, and the balun transformer in the circuit is by this electric capacity and inductance L 1 (8.2nH), L2 (22nH), and L3 (1.8nH) and a PCB microwave transmission line are formed, and total satisfies the requirement of RF I/O build-out resistor (50).In addition, the lead that has also designed one 1/2 wavelength is used for guaranteeing the correct phase of radiofrequency signal.In order to ensure the performance of circuit, guarantee impedance matching, the length of lead, the tie point position of L2, the lead trend between L and the 1/2 wavelength lead etc. must have strict regulation.
The one ZigBee module will realize the usb communication with PC; The interface circuit of CC2430 and FT245BM is as shown in Figure 3; Data that CC2430 provides through FT245BM and control interface are realized the exchange of data, and the WV of master controller CC2430 and FT245BM is directly provided by PC through USB interface.In design, used a slice configuring chip 93C46, this is a slice EEPROM, is used for VID, PID, Equipment Serial Number and some the illustrative information of storage products.In order to improve the antijamming capability of circuit, adopted a magnetic bead at the power end of USB interface, power end has increased and has decoupled and bypass circuit simultaneously, and in the PCB design, the cabling of data line should be lacked and equal in length as far as possible.In the utility model, used the 8 single data signal wires that P0.0, P0.1, P0.4, P0.5, P0.6, P0.7, P1.6, the P1.7 conduct of CC2430 are communicated by letter with FT245BM, P1.2, P1.3, P1.4, P1.5 are 4 control signal wires.
Described power supply supervisory circuit schematic diagram is as shown in Figure 4, and this part comprises control power unit and power state detection part.Described control power unit is by resistance R
12, R
13And 1 9012 PNP triode (Q
2), 1 8050 NPN triode (Q
3) add relay and constitute.In the time will opening the experiment table power supply, the control signal of CC2430 is through low level of P1.0 mouth output, Q at this moment
2, Q
3Be in conducting state, relay closes, experiment table power turn-on.When needs turn-offed the experiment table power supply, control signal was through high level of P1.0 mouth output, Q at this moment
2, Q
3Be in off-state, relay breaks off, the not conducting of experiment table power supply.In order to guarantee the reliably working of circuit, the triode output driving current must be chosen R greater than the action current of relay
13Resistance be crucial.Determine R after leaving and taking certain surplus again according to formula
13Value.
Power state detection part is made up of a RC charge-discharge circuit, photoelectricity optocoupler and diode, and purpose is in order to detect the duty of current relay.CC2430 judges the duty of current experiment table power supply according to the input voltage of P1.1 pin.When relay breaks off (the experiment table power supply is not supplied power), diode, triode in diode and the photoelectricity optocoupler all break off, and this moment, the P1.1 pin was a high level.When relay closes (power supply of experiment table power supply), at the positive half cycle of alternating current, because capacitor C
5With R
15The influence of the RC circuit that constitutes makes the level of P1.1 pin slowly rise, and can know that according to the computing formula of RC charging circuit capacitance voltage value P1.1 pin level is a low level.At the negative half period of alternating current, the phototriode conducting in the optocoupler, C at this moment
5Spark through phototriode, P1.1 pin level is dragged down.Therefore after the relay closes, the level of P1.1 pin is a low level always.
The current foldback circuit schematic diagram is as shown in Figure 5, and K1 is a current transformer, and D8, D9 are the input protection diode, is voltage signal with current conversion after electric current amplifies through prime, subsequently, passes through the one-level voltage follower again.R5 and C7 form charge-discharge circuit.In order to confirm current load current value.The voltage that I_CONSER is ordered is sampled through Chip Microcomputer A, judge the size of current experiment table load current according to the result of A/D sampling.Utilize formula, convert sampled result into current experiment table load current value I.
Claims (4)
1. laboratory power supply management system; It is characterized in that comprising server, PC, telegon, a plurality of terminal device and a plurality of experiment table; The corresponding experiment table of terminal device; Described telegon comprises a USB module and a ZigBee module, and described terminal device comprises the 2nd ZigBee module, Power Monitoring Unit and overcurrent protection module, and described server is connected with PC; A described ZigBee module is connected with PC through the USB module; A described ZigBee module and the mutual communication of the 2nd ZigBee module, described the 2nd ZigBee module is connected with the experiment table power supply through described Power Monitoring Unit, and described the 2nd ZigBee module is connected with the experiment table power supply through described overcurrent protection module.
2. a kind of laboratory power supply management system according to claim 1; It is characterized in that a described ZigBee module comprises that model is first chip and the peripheral circuit of CC2430; Described USB module comprises that model is second chip of FT245BM and the 3rd chip that model is 93C46; The 5V power supply is connected with the 8th pin of the 3rd chip, and the 4th pin of the 3rd chip is connected the 5th pin ground connection of described the 3rd chip through the 8th resistance with the 5V power supply; First pin of the 3rd chip is connected with the 32 pin of second chip; Second pin of the 3rd chip is connected with first pin of second chip, and the 3rd pin of the 3rd chip is connected with second pin of second chip
The 25 pin of second chip is connected with the 11 pin of first chip; The 24 pin of second chip is connected with the 12 pin of first chip; The 23 pin of second chip is connected with the 15 pin of first chip; The 22 pin of second chip is connected with the 16 pin of first chip, and the 21 pin of second chip is connected with the 17 pin of first chip, and the 20 pin of second chip is connected with the 18 pin of first chip; The 19 pin of second chip is connected with the 6th pin of first chip; The 18 pin of second chip is connected with the 5th pin of first chip, and the 16 pin of second chip is connected with the 4th pin of first chip, and the 15 pin of second chip is connected with the 3rd pin of first chip; The 14 pin of second chip is connected with second pin of first chip, and the 12 pin of second chip is connected with first pin of first chip.
3. a kind of laboratory power supply management system according to claim 2; It is characterized in that described the 2nd ZigBee module comprises that model is four-core sheet and the peripheral circuit of CC2430; Described Power Monitoring Unit comprises that second triode, the 3rd triode, relay and model are the photoelectrical coupler of P521; The 9th pin of four-core sheet is connected with the base stage of second triode through the 12 resistance, and the emitter of second triode is connected with VCC, and the collector of described second triode is connected with the base stage of the 3rd triode through the 13 resistance; The grounded emitter of the 3rd triode; The collector of the 3rd triode is connected with the coil of relay, and the switch stationary contact of relay is connected with the zero line of experiment table power supply
The 8th pin of four-core sheet is connected with the 4th pin of photoelectrical coupler; The 5th electric capacity is connected between the 3rd pin and the 4th pin of photoelectrical coupler; One of the 15 resistance terminates on the 4th pin of photoelectrical coupler; The other end of the 15 resistance is connected with VCC; First pin of photoelectrical coupler is connected with the live wire of experiment table power supply through the 6th resistance, and second pin of photoelectrical coupler is connected with the switch moving contact of relay, is connected with the 4th light emitting diode between first pin of photoelectrical coupler and second pin.
4. a kind of laboratory power supply management system according to claim 3 is characterized in that described overcurrent protection module comprises that model is the operational amplifier of LM358, and the 48 pin of four-core sheet is connected with first pin of operational amplifier through the 7th diode; The positive pole of the 7th diode is connected with first pin of operational amplifier; The negative pole of the 7th diode is connected with the 48 pin of four-core sheet, and the negative pole of the 7th diode is through the 7th capacity earth, and the negative pole of the 7th diode is through the 5th resistance eutral grounding; The negative pole of the 7th diode is connected with second pin of operational amplifier; The 8th pin of operational amplifier meets VCC, the 4th pin ground connection of operational amplifier, and the 3rd pin of operational amplifier is connected with the 7th pin of operational amplifier; Connect the 8th diode between the 5th pin of operational amplifier and the 6th pin; The negative pole of the 8th diode is connected with the 6th pin of operational amplifier, and the positive pole of the 8th diode is connected with the 5th pin of operational amplifier, connects the 9th diode between the 5th pin of operational amplifier and the 6th pin; The positive pole of the 9th diode is connected with the 6th pin of operational amplifier; The negative pole of the 9th diode is connected with the 5th pin of operational amplifier, connects current transformer between the two poles of the earth of the 9th diode, and current transformer is connected with the experiment table power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202201711U CN202600458U (en) | 2012-05-16 | 2012-05-16 | Laboratory power supply management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202201711U CN202600458U (en) | 2012-05-16 | 2012-05-16 | Laboratory power supply management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600458U true CN202600458U (en) | 2012-12-12 |
Family
ID=47317986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202201711U Withdrawn - After Issue CN202600458U (en) | 2012-05-16 | 2012-05-16 | Laboratory power supply management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202600458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681512A (en) * | 2012-05-16 | 2012-09-19 | 宁波大学 | Laboratory power supply controlling and monitoring system based on ZigBee |
| CN110085014A (en) * | 2019-04-30 | 2019-08-02 | 重庆政勤实业有限公司 | A kind of wireless control system |
-
2012
- 2012-05-16 CN CN2012202201711U patent/CN202600458U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681512A (en) * | 2012-05-16 | 2012-09-19 | 宁波大学 | Laboratory power supply controlling and monitoring system based on ZigBee |
| CN102681512B (en) * | 2012-05-16 | 2014-12-03 | 宁波大学 | Laboratory power supply controlling and monitoring system based on ZigBee |
| CN110085014A (en) * | 2019-04-30 | 2019-08-02 | 重庆政勤实业有限公司 | A kind of wireless control system |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121212 Effective date of abandoning: 20141203 |
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| RGAV | Abandon patent right to avoid regrant |