BJ-04-W Wireless Desktop Voting System

System Overview

By the BJ-04-W desktop wireless voting unit, the participant can realize registration ( by key pressing, inserting card, supplementary registration), voting ( Yes/No/Abstain, or the customized voting way by software), evaluation( Good, Fair, Poor and Abstain or the customized way by the software), election( elect one or more from M candidates), Grading( 0-100 points). The system can automatically collect the statistic of voting, election, evolution, and display the results on the big screen, projection screen and other display devices. The results can also be printed or burned into CD to preserve.





Linxia Theater

 Tongliao Conference Center

 Zipo People's Congress


Desktop Wireless Voting Unit BJ-04-W


♦ Utilize wireless digital communication way
♦ Unique wireless on-site environment online detection and frequency selection, ensure the system avoid any interference;
♦ Two registration ways, key pressing or inserting card.
♦ Software customized voting or evolution ways
♦ LCD display screen, humanistic human-machine interaction
♦ Automatic alarm when the system is faulty
♦ Low power consumption, low emission power, comply with the global electrical design and communication design standard
♦ Lithium battery or AAA battery, real-time detection of battery level, dynamic display, low battery alarm
♦ Automatic memory of voting result when power cut off
♦ Isolated touch switch, anti-30000V electrostatic interference
♦ Secret hood( optional) to ensure the privacy
♦ Unified shutdown by software
♦ Keys have three colors, red, yellow, green, makes it impressive
♦ Tilting silkscreen keys.


♦ Attendance Registration: inserting card, key-press, supplementary registration; late delegate can vote supplementally; count “ number of supposed attendance”, “number of real attendance”, “number of absence”.
♦ Voting: delegates can vote for “Yes” “No” “Abstain” or the customized voting way by the software. Computer automatically collect statistic and display the result.
* Single voting and multiple voting
* Effective first press-key or effective last press-key
♦ Election: elect one or more from candidates with the support of “single-candidate election” and “multicandidate election”
♦ Evaluation: four buttons to evaluate. It comes with four choices “Good”, “Fair”, “Poor”, “Abstain”, or the customized evaluation way by software.
♦ Grading: From 0-100 points, the initial score is 80 points, press “Yes” to increase points and “No” to reduce points.
♦ LCD Dynamic display of the voting process( such as “ registration please, registration done, voting please, voted , please return” and etc)
♦ Registration/ Yes/Abstain/No tilting silkscreen keys. have three impressive colors, red, yellow, green
♦ Multiple encryption and err correction during the data transmission
♦ Unified shutdown by software or automatic shutdown when it has not received signal for 4 hours, ensure the voting process by avoiding human misoperation


Technical Specification

Frequency range

300~800MHz(immune to mobile signal jammer)

Channel transponder

24 selectable channels

Registration methods

Press-key or insert card

Communication method

10mW wireless communication with confidential agreement + multi-verification

Effective communicating distance




LCD screen

128×64 dot-matrix display

Battery display

Real-time display, low-level alarm

Battery specification

Lithium battery or three AAA batteries

Service time

39 hours(Lithium battery)

Standby time

120 hours



Net weight

0.5Kg(excluding batteries)

Working temperature


Storage temperature







 People's Congress

 Xishui County 

People's Congress

 Songxian County 





Wireless Base Station Unit ZJ-W5

Wireless base station unit has A/B output channels. As one channel is out of the service, it can use the backup channel to ensure the conference is normal; it comes with the signal detection function, it can automatically scan the wireless environment of the conference scene and select the best communication without any interference, ensure the stable operation; Single standard equipped base station unit can support up to 200 wireless voting units. The maximum capacity of the system is up to 4096 units.


♦ Channel detection and channel selection, chose the not-interference channel to ensure stable communication
♦ Double Units backup functions to ensure stable operation of the system
♦ Different antennas for different distance
♦ Flexible deployment in accordance to the conference environment
♦ Immune to mobile signal jammer
♦ Fashion appearance design



♦ A/B 485 interfaces to connect the PC for larger system
♦ With up to 200 voting units, it can connect with the central controller to support 4000 voting units
♦ With A/B 232 interface, it can be connected to PC
♦ Antenna connectors for A/B channels to connect small size or medium size antenna
♦ With 232 detection interface and detection antenna connector, detect the wireless signal on site.
♦ A/B channel selection switch
♦ Speedy data processing , it can report the result of 4096 units voting system in 25 seconds
♦ The distance between Wireless Base Station Unit and PC is up to 1200 meters, flexible deployment for Wireless Base Station Unit

Standard configuration

♦ One aluminum carry case
♦ One tripod stand
♦ One 9V power supply
♦ One small size antenna, one medium size antenna
♦ Two five-meter-long RS-232 connecting wires

Technical Specification

Frequency range


Emission power

Standard 10mW, adjustable 5-20mW

Selectable channels

Up to 24

Power supply

DC 12V

Stable operating range


Connecting methods

Standard RS-232 or RS-485

Single base station capacity

200 units( standard)

Max system capacity

4096 units

Antenna length

Small: 120mm; Medium: 880mm

Dimensions( W*H*D)


Net weight


operating temperature


Storage temperature



Aluminum carrycase


Functions indicators

Front side:
1. Power ON/OFF. When red light on, power supply is connected; when blue light on, power is on;
2. Power and working indicators( when blue light on, power is connected; when indicator blinks, the unit is working)


The left side:
3. Channel: A RS-485 communication interface;
4. Channel: A RS-232 communication interface;
5. Channel A: antenna connector


The right side:
6. Channel B: RS-485 communication interface
7. Channel B: RS-232 communication interface;
8. Channel B: antenna connector


The back side:
9. Test antenna
10. RS-232 Text interface
11. 12V power supply input
12. A/B channel selection switch( select A/B channel to communicate)

System Diagram