CN109522990A - Expo Information collection system - Google Patents
Expo Information collection system Download PDFInfo
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- CN109522990A CN109522990A CN201811386725.3A CN201811386725A CN109522990A CN 109522990 A CN109522990 A CN 109522990A CN 201811386725 A CN201811386725 A CN 201811386725A CN 109522990 A CN109522990 A CN 109522990A
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- triode
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- capacitor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/10—Office automation; Time management
- G06Q10/109—Time management, e.g. calendars, reminders, meetings or time accounting
- G06Q10/1093—Calendar-based scheduling for persons or groups
- G06Q10/1095—Meeting or appointment
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- Business, Economics & Management (AREA)
- Human Resources & Organizations (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Entrepreneurship & Innovation (AREA)
- Strategic Management (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Operations Research (AREA)
- Quality & Reliability (AREA)
- Tourism & Hospitality (AREA)
- Marketing (AREA)
- General Business, Economics & Management (AREA)
- Economics (AREA)
- Data Mining & Analysis (AREA)
- General Engineering & Computer Science (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention discloses a kind of Expo Information collection systems, including multiple Expo Information acquisition terminals, card dispensing terminal and server, Expo Information acquisition terminal includes client face liquid crystal display, exhibition booth face liquid crystal display, single-chip microcontroller, electronic label read-write head, wireless communication module, USB interface and power module, and client face liquid crystal display, exhibition booth face liquid crystal display, electronic label read-write head, wireless communication module, USB interface and power module are connect with the single-chip microcontroller；The power module includes voltage input end, transformer, bridge rectifier, first capacitor, the first triode, first resistor, 3rd resistor, the second triode, first diode, the second potentiometer, the second capacitor and voltage output end.Implement Expo Information collection system of the invention, have the advantages that circuit structure is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit it is higher.
Description
Technical field
The present invention relates to exhibitions service field, in particular to a kind of Expo Information collection system.
Background technique
All parts of the country will hold various exhibitions every year now, and manufacturer can all show certainly in exhibition
Oneself product, while client in all parts of the country also can be to the product for looking for oneself needs in exhibition.Existing some exhibitions
Information Collection System is arranged an Expo Information in each exhibition booth and collects instrument by the way that electronic tag is written in user information, passes through
Expo Information collects instrument and reads the user information for coming current exhibition booth, realizes the collection to exhibitions user information more conveniently,
Collecting instrument by Expo Information can be arranged and be analyzed to information from time, space, industry perspective, and exhibitions subject matter is carried out
Selection and determining work, provide great convenience to information work collection, understand exhibitioner dynamic immediately.However, traditional
The component that the power pack of Expo Information collection system uses is more, and circuit structure is complicated, and hardware cost is higher, it has not been convenient to tie up
Shield.In addition, since the power pack of traditional Expo Information collection system lacks corresponding circuit protection function, such as: lack limit
Defencive function is flowed, causes the safety and reliability of circuit poor.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, provide a kind of circuit structure compared with
For simple, cost is relatively low, maintains easily, the higher Expo Information collection system of the safety and reliability of circuit.
The technical solution adopted by the present invention to solve the technical problems is: a kind of Expo Information collection system is constructed, including
Multiple Expo Information acquisition terminals, card dispensing terminal and server, each Expo Information acquisition terminal are respectively arranged at each
Information on different exhibition booths, for reading and storing electronic tag, the card dispensing terminal, which is used to collect before exhibition, wants exhibition
The user information of user distributes unique Customs Assigned Number for each user, and user information is added to the clothes by network
It is engaged in device, when user participates in exhibition, user information is written in corresponding electronic tag according to Customs Assigned Number, the server
Respectively with the Expo Information acquisition terminal and card dispensing terminal connection, for storing corresponding data；
The Expo Information acquisition terminal includes client face liquid crystal display, exhibition booth face liquid crystal display, single-chip microcontroller, electronics
Tag read head, wireless communication module, USB interface and power module, client face liquid crystal display, the liquid crystal display of exhibition booth face
Screen, electronic label read-write head, wireless communication module, USB interface and power module are connect with the single-chip microcontroller；
The power module includes voltage input end, transformer, bridge rectifier, first capacitor, the first triode, first
Resistance, 3rd resistor, the second triode, first diode, the second potentiometer, the second capacitor and voltage output end, the transformation
One end of the primary coil of device is connect with one end of the voltage input end, the other end of the primary coil of the transformer and institute
State the other end connection of voltage input end, the second end company of one end of the secondary coil of the transformer and the bridge rectifier
It connects, the other end of the secondary coil of the transformer is connect with the 4th end of the bridge rectifier, the bridge rectifier
First end is connect with the collector of first triode, one end of first resistor and the cathode of first capacitor respectively, and described
The base stage of one triode is connect with one end of the other end of the first resistor and 3rd resistor respectively, the bridge rectifier
Third end respectively with the first capacitor anode and 3rd resistor other end connect and ground, the hair of first triode
Emitter-base bandgap grading respectively with the collector of second triode, a fixing end of the second potentiometer, the second capacitor cathode and voltage
The cathode of output end connects, and the emitter of second triode is connect with the cathode of the first diode, and the described 2nd 3
The base stage of pole pipe is connect with the sliding end of second potentiometer, the anode of the first diode respectively with second current potential
The positive connect and ground of another fixing end of device, the anode of the second capacitor and voltage output end, the resistance of the 3rd resistor
Value is 35k Ω.
In Expo Information collection system of the present invention, the power module further includes third capacitor, the third
One end of capacitor is connect with the emitter of first triode, the other end of the third capacitor and second triode
Collector connection, the capacitance of the third capacitor are 35k Ω.
In Expo Information collection system of the present invention, the power module further includes the second diode, and described
The anode of two diodes is connect with the collector of first triode, the cathode of second diode and the first resistor
One end connection, the model E-103 of second diode.
In Expo Information collection system of the present invention, the power module further includes the 4th resistance, and the described 4th
One end of resistance is connect with the emitter of first triode, the other end and the voltage output end of the 4th resistance
Cathode connection, the resistance value of the 4th resistance are 42k Ω.
In Expo Information collection system of the present invention, first triode and the second triode are positive-negative-positive
Triode.
In Expo Information collection system of the present invention, the wireless communication module be bluetooth module, WIFI module,
Gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module or
LoRa module.
Implement Expo Information collection system of the invention, has the advantages that and adopted due to being equipped with multiple Expo Informations
Collect terminal, card dispensing terminal and server；Expo Information acquisition terminal includes client face liquid crystal display, the liquid crystal display of exhibition booth face
Screen, single-chip microcontroller, electronic label read-write head, wireless communication module, USB interface and power module；Power module includes voltage input
End, transformer, bridge rectifier, first capacitor, the first triode, first resistor, 3rd resistor, the second triode, the one or two
Pole pipe, the second potentiometer, the second capacitor and voltage output end, the power supply of the power module and traditional Expo Information collection system
Split-phase ratio, the component used is less, due to saving some components, hardware cost can be reduced in this way, in addition, third
Resistance is for carrying out current-limiting protection, therefore circuit structure is relatively simple, cost is relatively low, maintain easily, the safety of circuit and can
It is higher by property.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram in Expo Information collection system one embodiment of the present invention；
Fig. 2 is the structural schematic diagram of Expo Information acquisition terminal in the embodiment；
Fig. 3 is the circuit diagram of power module in the embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In Expo Information collection system embodiment of the present invention, the structural schematic diagram of the Expo Information collection system such as Fig. 1
It is shown.In Fig. 1, which includes multiple Expo Information acquisition terminals 1, card dispensing terminal 2 and server 3, often
A Expo Information acquisition terminal 1 is respectively arranged on each different exhibition booth, carries the electricity of user information for reading and storing
The information of subtab, card dispensing terminal 2 want the user information of exhibition user for collecting before exhibition, unique for each user distribution
Customs Assigned Number, and user information is added in server 3 by network, when user participates in exhibition, according to Customs Assigned Number
User information is written in corresponding electronic tag, server 3 connect with exhibitions information acquisition terminal 1 and card dispensing terminal 2 respectively,
For storing corresponding data.
An Expo Information acquisition terminal 1 is put in each exhibition booth, while the client to each to visit sends out an electronics mark
Label are believed before client to exhibition booth in exhibitions with the information of corresponding client, such as name, unit, contact method in the exhibition card
It swipes the card on breath acquisition terminal 1, user information is logged in Expo Information acquisition terminal 1, and exhibition booth producer uses USB flash disk customer data again
It reads, is saved in the computer of oneself.
Fig. 2 is the structural schematic diagram of Expo Information acquisition terminal in the present embodiment, in Fig. 2, the Expo Information acquisition terminal 1
Including client face liquid crystal display 11, exhibition booth face liquid crystal display 12, single-chip microcontroller 13, electronic label read-write head 14, wireless communication
Module 15, usb 16 and power module 17, wherein client face liquid crystal display 11, exhibition booth face liquid crystal display 12, electronics
Tag read head 14, wireless communication module 15, usb 16 and power module 17 are connect with single-chip microcontroller 13.
Client face liquid crystal display 11 is set to client face, and exhibition booth face liquid crystal display 1 is set to exhibition booth face, client face liquid
Crystal display screen 11 and exhibition booth face liquid crystal display 1 can show identical content, or the respective different content of display simultaneously；Electronics
Tag read head 14 is used to read the user information in electronic tag；Single-chip microcontroller 13 is used for control client face liquid crystal display 11
With the display of exhibition booth face liquid crystal display 1, and the user information in electronic tag is obtained.The module by wireless communication of single-chip microcontroller 13
15 are communicated with external equipment.
In the present embodiment, wireless communication module 15 is bluetooth module, WIFI module, gsm module, GPRS module, CDMA mould
Block, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module or LoRa module etc..By the way that a variety of nothings are arranged
Line communication mode can not only increase the flexibility of communication, moreover it is possible to meet the needs of different user and different occasions.
When in particular by LoRa module, farther out, and communication performance is relatively stable for communication distance, be suitable for QoS requirement compared with
High occasion.
Fig. 3 is the circuit diagram of power module in the present embodiment, and in Fig. 3, which includes voltage input end
Vin, transformer T, bridge rectifier Z, first capacitor C1, the first triode Q1, first resistor R1,3rd resistor R3, the two or three
Pole pipe Q2, first diode D1, the second potentiometer RP2, the second capacitor C2 and voltage output end Vo, the primary coil of transformer T
One end connect with one end of voltage input end Vin, the other end of the primary coil of transformer T is another with voltage input end Vin's
One end connection, one end of the secondary coil of transformer T are connect with the second end of bridge rectifier Z, the secondary coil of transformer T
The other end is connect with the 4th end of bridge rectifier Z, the first end of the bridge rectifier Z current collection with the first triode Q1 respectively
Pole, first resistor R1 one end connected with the cathode of first capacitor C1, the base stage of the first triode Q1 respectively with first resistor R1
The other end connected with one end of 3rd resistor R3, the third end of bridge rectifier Z respectively with the anode of first capacitor C1 and the
The other end connect and ground of three resistance R3, the emitter of the first triode Q1 respectively with the collector of the second triode Q2,
A fixing end of two potentiometer RP2, the cathode of the second capacitor C2 are connected with the cathode of voltage output end Vo, the second triode Q2
Emitter connect with the cathode of first diode D1, the sliding end of the base stage of the second triode Q2 and the second potentiometer RP2 connect
It connects, the anode of the first diode D1 anode and voltage with another fixing end of the second potentiometer RP2, the second capacitor C2 respectively
The positive connect and ground of output end vo.
For the power module 17 compared with the power pack of traditional Expo Information collection system, the component used is less,
Circuit structure is relatively simple, maintains easily, and due to saving some components, can reduce hardware cost in this way.In addition, third
Resistance R3 is current-limiting resistance, and for carrying out current-limiting protection, therefore the safety and reliability of circuit is higher.It is noted that
In the present embodiment, the resistance value of 3rd resistor R3 is 35k Ω, and certainly, in practical applications, the resistance value of 3rd resistor R3 can basis
Concrete condition adjusts accordingly, that is, the resistance value of 3rd resistor R3 can be increased accordingly or be subtracted as the case may be
It is small.
The working principle of the power module 17 is as follows: bridge rectifier Z exports the straight of an amplitude variation by transformation
Galvanic electricity pressure, the voltage are added on the collector of the first triode Q1, the electricity in the case where guaranteeing the first triode Q1 conducting
Pressure is used as output voltage output valve DC voltage output end, while the second triode Q2 is by being connected to the second current potential of its base stage
The variation of device RP2 controls the second triode Q2, and gives the Voltage Feedback in the emitter e of second triode Q2 to the one or three pole
Pipe Q1, so that the fluctuation for offsetting output voltage achievees the purpose that pressure stabilizing.In addition, first capacitor C1 is polar capacitor, it is ensured that
The voltage of output is negative value, and negative output voltage will be more stable.
In the present embodiment, the first triode Q1 and the second triode Q2 are PNP type triode.Certainly, in practical application
In, the first triode Q1 and the second triode Q2 can also be NPN type triode, but at this moment the structure of circuit also will accordingly be sent out
Changing.
In the present embodiment, which further includes third capacitor C3, one end of third capacitor C3 and the first triode
The emitter of Q1 connects, and the other end of third capacitor C3 is connect with the collector of the second triode Q2.Third capacitor C3 is coupling
Capacitor, for preventing the interference between the first triode Q1 and the second triode Q2, with further enhance circuit safety and
Reliability.It is noted that the capacitance of third capacitor C3 is 35k Ω in the present embodiment, certainly, in practical applications, the
The capacitance of three capacitor C3 can adjust accordingly as the case may be, that is, the capacitance of third capacitor C3 can basis
Concrete condition is increased accordingly or is reduced.
In the present embodiment, which further includes the second diode D2, the anode and the one or three of the second diode D2
The collector of pole pipe Q1 connects, and the cathode of the second diode D2 is connect with one end of first resistor R1.Second diode D2 is limited
Diode is flowed, current-limiting protection is carried out for the collector current to the first triode Q1, further to enhance the safety of circuit
Property and reliability.It is noted that in the present embodiment, the model E-103 of the second diode D2, certainly, in practical application
In, the second diode D2 can also have the diode of similar functions using other models.
In the present embodiment, which further includes the 4th resistance R4, one end of the 4th resistance R4 and the first triode
The emitter of Q1 connects, and the other end of the 4th resistance R4 is connect with the cathode of voltage output end Vo.4th resistance R4 is limited galvanic electricity
Resistance carries out current-limiting protection for the emitter current to the first triode Q1, to further enhance current limitation effect.It is worth mentioning
It is that in the present embodiment, the resistance value of the 4th resistance R4 is 42k Ω, certainly, in practical applications, the resistance value of the 4th resistance R4 can be with
Adjust accordingly as the case may be, that is, the 4th resistance R4 resistance value can be increased accordingly as the case may be or
Reduce.
In short, the power module 17 makes compared with the power pack of traditional Expo Information collection system in the present embodiment
Component is less, and circuit structure is relatively simple, maintains easily, and due to saving some components, can reduce so hard
Part cost.In addition, being equipped with current-limiting resistance in the power module 17, therefore the safety and reliability of circuit is higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of Expo Information collection system, which is characterized in that including multiple Expo Information acquisition terminals, card dispensing terminal and service
Device, each Expo Information acquisition terminal are respectively arranged on each different exhibition booth, for reading and storing electronic tag
Information, the card dispensing terminal wants the user information of exhibition user for collecting before exhibition, unique for each user distribution
Customs Assigned Number, and user information is added in the server by network, when user participates in exhibition, according to Customs Assigned Number
User information is written in corresponding electronic tag, the server respectively with the Expo Information acquisition terminal and card dispensing terminal
It connects, for storing corresponding data；
The Expo Information acquisition terminal includes client face liquid crystal display, exhibition booth face liquid crystal display, single-chip microcontroller, electronic tag
Read/write head, wireless communication module, USB interface and power module, client face liquid crystal display, exhibition booth face liquid crystal display,
Electronic label read-write head, wireless communication module, USB interface and power module are connect with the single-chip microcontroller；
The power module includes voltage input end, transformer, bridge rectifier, first capacitor, the first triode, the first electricity
Resistance, 3rd resistor, the second triode, first diode, the second potentiometer, the second capacitor and voltage output end, the transformer
One end of primary coil connect with one end of the voltage input end, the other end of the primary coil of the transformer with it is described
The other end of voltage input end connects, and the second end of one end of the secondary coil of the transformer and the bridge rectifier connects
It connects, the other end of the secondary coil of the transformer is connect with the 4th end of the bridge rectifier, the bridge rectifier
First end is connect with the collector of first triode, one end of first resistor and the cathode of first capacitor respectively, and described
The base stage of one triode is connect with one end of the other end of the first resistor and 3rd resistor respectively, the bridge rectifier
Third end respectively with the first capacitor anode and 3rd resistor other end connect and ground, the hair of first triode
Emitter-base bandgap grading respectively with the collector of second triode, a fixing end of the second potentiometer, the second capacitor cathode and voltage
The cathode of output end connects, and the emitter of second triode is connect with the cathode of the first diode, and the described 2nd 3
The base stage of pole pipe is connect with the sliding end of second potentiometer, the anode of the first diode respectively with second current potential
The positive connect and ground of another fixing end of device, the anode of the second capacitor and voltage output end, the resistance of the 3rd resistor
Value is 35k Ω.
2. Expo Information collection system according to claim 1, which is characterized in that the power module further includes third electricity
Hold, one end of the third capacitor connect with the emitter of first triode, the other end of the third capacitor with it is described
The collector of second triode connects, and the capacitance of the third capacitor is 35k Ω.
3. Expo Information collection system according to claim 2, which is characterized in that the power module further includes the two or two
Pole pipe, the anode of second diode are connect with the collector of first triode, the cathode of second diode with
One end of the first resistor connects, the model E-103 of second diode.
4. Expo Information collection system according to claim 3, which is characterized in that the power module further includes the 4th electricity
Resistance, one end of the 4th resistance connect with the emitter of first triode, the other end of the 4th resistance with it is described
The cathode of voltage output end connects, and the resistance value of the 4th resistance is 42k Ω.
5. Expo Information collection system according to any one of claims 1 to 4, which is characterized in that the one or three pole
Pipe and the second triode are PNP type triode.
6. Expo Information collection system according to any one of claims 1 to 4, which is characterized in that the wireless communication
Module is bluetooth module, WIFI module, gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-
SCDMA module, Zigbee module or LoRa module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811386725.3A CN109522990A (en) | 2018-11-20 | 2018-11-20 | Expo Information collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811386725.3A CN109522990A (en) | 2018-11-20 | 2018-11-20 | Expo Information collection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109522990A true CN109522990A (en) | 2019-03-26 |
Family
ID=65776492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811386725.3A Withdrawn CN109522990A (en) | 2018-11-20 | 2018-11-20 | Expo Information collection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109522990A (en) |
-
2018
- 2018-11-20 CN CN201811386725.3A patent/CN109522990A/en not_active Withdrawn
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190326 |