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Keytop Parking Guidance System (PGS) As one of the best parking guidance system suppliers, Xiamen Keytop has the most successful cases which are from different parts of the world than other China suppliers. The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly. Using LED display and LED indicator to show the realtime parking information (free/occupied parking space) to the vehicle owners. Moreover, the owners or operators can monitor the real time parking information as well as collect and analyze statistic data about utilization of each car park space. What are the benefits of Parking Guidance System? PGS have been proven to cut the cutomer's timetopark in half and result in a 35% rise in visits. Simply put, the easier it is for customers to visit, the more customers will want to return again and again. Travellers: Reduced time looking for parking, and reduced frustration.

Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

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Page 1: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

Keytop Parking Guidance System (PGS) 

 

As one of the best parking guidance system suppliers, Xiamen Keytop has 

the most  successful  cases which  are  from  different  parts  of  the world 

than other China suppliers. 

The main  function our parking guidance system  (PGS) has  is  that helps 

the driver find free parking space on different layers and sectors quickly. 

Using  LED  display  and  LED  indicator  to  show  the  real‐time  parking 

information  (free/occupied  parking  space)  to  the  vehicle  owners. 

Moreover,  the  owners  or  operators  can monitor  the  real  time  parking 

information as well as collect and analyze statistic data about utilization 

of each car park space. 

What are the benefits of Parking Guidance System? 

PGS  have  been  proven  to  cut  the  cutomer's  time‐to‐park  in  half  and 

result in a 3‐5% rise in visits. Simply put, the easier it is for customers to 

visit, the more customers will want to return again and again. 

Travellers: Reduced time looking for parking, and reduced frustration.   

Page 2: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

Venue Operators: Increase in patronage, and customer satisfaction.   

Parking  Operators:  Increased  space  occupancy,  and  increased 

revenue.   

Environmental: Reduced  air pollution,  reduced  congestion,  reduced 

illegal parking. 

PGS Key Components: 

●CCU: Central Control System 

●ZCU: Zone Control System 

●UD: Ultrasonic Detector 

●LED Indicator: Red/Green Led Indicator 

●LED screen: Outdoor/Indoor LED screen 

 

PGS wiring diagram 

  

How PGS Works: 

 

Firstly, UD takes use of ultrasonic wave to detect the car space to see if it 

Page 3: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

is occupied by vehicles and  transfer  relative command  to LED  Indicator 

which will turn from green to RED when occupied, or it will keep GREEN; 

meanwhile, the UD transmit its status message to ZCU immediately, and 

ZCU  will  collect  and  forward  the  information  to  CCU;  CCU  processes 

these data and sends the relevant command to ZCU and LED panel. 

 1. CCU 

 

                                                                   

           

 

1) Specification:   

work temperature:  ‐20~+80℃ 

rate voltage:  AC 110~220V 

frequency:  50~60HZ 

communication: 2 RS‐232 serial port(RS‐232‐NODE RS‐232‐PC) 

baud:  RS‐232‐NODE:9600bps;RS‐232‐PC:57600bps 

distance:  ≤1000m 

 

2) Main function:   

①.  CCU main  function  is  to  inquire  about  the  relevant  ZCU  data  via 

RS232‐NODE by turns and process these data; then send these processed 

data  to  PC  or  other  relevant  equipments;  besides  it  updates  the  LED 

display’s data via RS232‐NODE.   

②. One CCU can support 60 ZCU in max.. 

2. ZCU 

 

Page 4: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

 

 

1)Specification: 

Size: 30*24.5*6(CM) 

Work temperature:‐20+80℃ 

Rate Voltage: DC 24V 

Rate current: 70mA 

Communication: RS‐485 serial port (sensor/sensor/CCU) 

Baud: RS‐485‐B: 4800bps, RS‐485‐C: 9600bps 

Distance:≦1000M 

 

2)Main function: 

①.  It  is  to  inquire  about  the  relevant  sensors’  status  via  RS485‐B  by 

turns,  and  forward  the  data  to  CCU  by  RS485‐C.Meanwhile,  the  ZCU 

forwards the command of CCU to LED screen via RS485‐B.   

②. The RS485‐B data bus can support 60 UD in max., whose addresses 

must not be set repeatedly. 

 

 

Page 5: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

3. UD 

 

 

 

 

 

 

 

 

Page 6: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

 

 

 

 

                  

 

 

Page 7: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

1) Specification: 

 

Size:  dia. 100*23(mm)   

Weight:  113g 

Principle:  Ultrasonic   

Work temperature:  ‐20~+80℃ 

Current rating:  13mA+17mA(LED indicator)   

Voltage rating:  DC 24V 

Detecting arrange 0.1~3.5m   

Max error:  0.1m 

Detecting area (3.5m): 0.4sq.m   

Communication:  RS‐485 

baud velocity:  4800bps, N,8,1   

Available distance:  ≤1000m 

 

2) Main Functions: 

 

①. UD(ultrasonic detector) as one of the main part of parking guidance 

system  makes  use  of  ultrasonic  detecting  the  parking  space  to  get 

message and transfer to ZCU or other equipments by RS485. 

②. One parking space needs one UD which is installed in the middle of 

the car park space. 

4. LED indicator  

                                         VACANT                                                                            OCCUPIED 

 

       

Page 8: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

 

1)Main Functions and Features: 

①.  Install  LED  indicator  in  the  front  of  car  park  space  for  the 

convenience of driver’s observation. 

②. Show the parking  information to the driver by  its color,  it will turn 

from green to red when it occupied, or it will keep green 

③. One park space needs one LED indicator. 

5. LED screen 

1)LED indoor screen  

 

 

 

Page 9: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

2) Outdoor LED Screen 

 

 

 

1)Specification: 

 

work temperature:  ‐20~+80℃ 

Page 10: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

rate voltage:  AC 110~220V 

frequency:  50~60HZ 

communication:  RS‐485 

baud:  4800bps 

distance:  ≤1000m 

 

2)Main Functions and Features: 

 

Three digits are  to show  the available  lots number and  the arrow  is  to 

show the direction. 

The led indoor screen will be installed at the crossings of car park. 

The outdoor  led  screen will be  installed at  the entrance of  car park or 

other outside place. 

 

 

6. Software  

 

 Remark: The red one means occupied, the green one means vacant. 

Page 11: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

 

Remark: The left is led screen list and the right is the detector list. 

 

 

 

 

1). Flow Statistic means total car’s quantity in your appointed time 

Eg: From 12:00 to 13:00, there are THREE cars driving into the Car Park in 

Page 12: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

this hour, so it means Flow Statistic=3 

2). Use Ratio =  [sum  (each  space’s use  time)]/  (appointed  time*total 

space in the Car Park) 

 

Eg: there are 5 spaces in the Car Park, today the parking spaces are only 

used between12:00‐13:00 

Space1 used time: 0.5 hour, 

Space2 used time: 0 hour 

Space3 used time: 0.6 hour, 

Space4 used time: 1 hour, 

Space5 used time: 0 hour 

So  the  Use  Ratio  between 

12:00‐13:00=(0.5+0+0.6+1+0)/(1hour*5spaces)=2.1/5=42% 

And today’s Use Ratio= (0.5+0+0.6+1+0)/(24*5spaces)=1.75%  

 

 

 

 

Green considered as used (occupied), Red means not used (vacant) 

Eg: suppose the Car Park information between12:00‐13:00 is as below: 

Time      vacant space      occupied space      Total space 

Page 13: Keytop Parking Guidance System (PGS) · The main function our parking guidance system (PGS) has is that helps the driver find free parking space on different layers and sectors quickly

12:01        4                            1                          5 

12:30        3                            2                          5 

12:33        2                            3                          5 

12:45        5                            0                          5 

So the Use Ratio of car park between 12:00‐13:00= (1+2+3+0)/ (5+5+5+5) 

=30%