LDSW Reader for Parking Space Management Product Description ? ? System Overview: ??Wireless magnetometer detector uses 3 axis geomagnetic sensor, every 8 seconds?it will measure the magnetic field intensity in different directions. The intensities will be?changed when there is a car parked in the space. According to the change of the?magnetic?field strength, the smart parking sensor?will send a “YES” or “NO” judgment result to the reader. ? ??The magnetometer detector is an important part of parking management system, which is installed in the bottom center of each parking space, using real-time data collecting parking spaces work principle of wireless geomagnetic ranging, at the same time the parking information in a timely manner through the transmission of radio frequency wireless network to a reader. This parking information can be used to provide application service to people for car parking guidance system, and also can be used for parking management. ?? ? Reader is a device for smart parking space sensor’s data reception, it’s through RF2.4G signal to connect to smart parking space sensor, it sends effective data to control center immediately when it receives smart parking space sensor’s data. the control center must return confirmation after receiving the information, otherwise the reader will put data stored locally, repeatedly sent, until success. The reader’s standard channel of communication is RS232/RS485, you can choose to buy WIFI/GPRS adaptor to connect reader to PC wirelessly. For cable, fiber channel, you can choose to buy the serial port server, the serial port to the network port, the optical fiber interface. System Parts

Detector		Reader
Working Temperature	- 35 ℃ to 70 ℃	Working temperature	- 35 ℃ to 70 ℃
Emission current	about 400mA	Emission current	400 mA
Receiving current	about 35mA	Receiving current	130 mA
Quiescent current	<8uA	Antenna	external SMA antenna
Working voltage	DC2.7V ~ DC5V	Receiver sensitivity	-102 dBm
Receiving sensitivity	-102 dbm	Output power	≥+ 18dBm
Antenna	Built-in PCB antenna	Communication range	≥ 1.5km (Visual)
Output power	>18dBm	Transmission rate	125kbps (adjustable)
Communication mode	DSSS	Working Frequency	2.4Ghz~2.498Ghz
Working frequency	2.4Ghz ~ 2.498Ghz	Serial working rate	2400 ~ 115200bps (optional)
Communication range	300-1000m (Visual)	Communication mode	DSSS
Transmission rate	125kbps	Voltage input	AC 110 ~ 250ACV
Sleep period	8 seconds	Working mode	Multi channel coordination
Detection methods	Geomagnetic variation	Output connection mode	Aviation joint
Body detection distance	< 0.8m	Output interface	RS232/RS485
Power supply	ER14505E or larger	Data interface	Not support hot swap
Service life	>3 years	Special design	Waterproof &Lightning protection
		Operating voltage for load control	AC220V
		Shell	Aluminum material, sand blasted surface

??? Besides Hardware, a Demo Software can be provided for customer test, and API will be provided along with order. ? Installation Steps 4 Steps of Detector Installation: ? Advantages 1. Long range: One reader can cover radius about 300-1000m, for each floor, only one or two readers?are needed. 2. No wire: very easy installation and maintenance. 3. Reliable and stable working. 4. Low power consumption. 5. Long battery life: Detector battery ( 1x2300mA) life can last for 3-5 years. 6. Lower cost, comparing to similar technology like ultrasonic, etc. 7. Waterproof and Compression-resistant. 8. Widely applied for any parking space management: indoor/outdoor/roadside parking lot. Packaging & Shipping Standard Export Carton With Foam Lining. Our Services 1. Any queries are welcomed if you have any doubts for products and services, we will be very glad to respond to you promptly. 2. We provide 1-year warranty for our products. 3. Demo software can be provideved free of charge. 4. Free technical support online. About LDSW ? ? Work on demands, LDSW uses Dsss technology, LDSW tag can work in different ways,?LDSW uses a patented technology “DNA check”, which allows a tag being woken up far?from 1500 m away and at very low power consumption. Many different frequency channels?can be used in the same LDSW working system, This would allow many readers working?at the same time. This technology also would speed up the working process, cut down tag?power consumption and obtain great working flexibility. We have obtained over 20 patents for our LDSW technology both Home and Abroad.