GPS vehicle speed test sensor
GPS vehicle speed test sensor takes GNSS board card as the core, with high-speed embedded microprocessor, converts GPS signal into three forms of pulse, RS232 and analog voltage signal. Supports all GNSS systems, including GPS, GLONASS, BEIDOU, Galileo, RTK, small size design, new hardware platform and high anti-jamming algorithm. The product has the characteristics of low power consumption, light weight, and abundant communication interfaces.
●Rich functions: built-in high-precision brake trigger logic circuit.
●Selected parts and accessories: The connectors are imported products to ensure reliable connection of the products.
●USB interface: The sensor can be connected to a computer through a USB interface to achieve precise measurement of speed and distance. It can also be connected to the PCM series data collector produced by our company.
●High precision: Built-in high-precision brake trigger logic circuit, using intelligent real-time interpolation algorithm, ranging accuracy reaches the international level, suitable for speed testing of automobiles, trains, high-speed rail, ships, etc., KD-100 is especially suitable for rapid deceleration, emergency Accelerated high-dynamic and high-precision speed measurement occasions.
●Easy to upgrade: It can perfectly replace the traditional grounded five-wheel instrument or non-contact photoelectric vehicle speed sensor. The original test instrument based on the traditional grounded five-wheel instrument or non-contact photoelectric vehicle speed sensor can be upgraded to simply by replacing the sensor. The most advanced GPS speed measurement method eliminates the trouble of replacing the instrument host or redeveloping and purchasing the instrument host, saving you time and money.
●Rich interfaces: pulse output, RS232, analog voltage signal 3 signal output forms can be matched and combined, and the signal output form can be customized through the communication protocol.
●High cost performance: Using the original intelligent real-time interpolation algorithm, the KD-100 data update frequency can be increased up to 1000Hz. The measurement accuracy is better than similar international products, but the price is favorable.
●The GPS vehicle speed sensor can be used for the highest car speed test, the lowest stable speed test of the car, the acceleration performance test of the car, the traction performance test of the car, the taxiing test, the measurement test of the consumption limit of the operating passenger car, the measurement test of the fuel consumption of the operating truck, and the fuel consumption of the car Measurement test, automobile speedometer, odometer calibration and correction, motor vehicle and trailer anti-lock braking performance and test, automobile handling stability test, commercial vehicle rollover stability test, road vehicle heavy commercial vehicle train and articulated passenger car Lateral stability test, car ride comfort test.
Reasons for upgrade:
●Traditional grounded five-wheel instrument has stable pulse output at low speed (even interval), but it is bulky and inconvenient to install, and due to the five-wheel dynamic balance problem and uneven ground, it will cause large measurement errors at high speed;
●The non-contact photoelectric vehicle speed sensor (also known as the photoelectric head) is much easier to install than the traditional grounded five-wheel instrument, but its actual use accuracy has many factors, such as road conditions, illumination, installation direction and height, etc., and the above-mentioned influencing factors are very It is difficult to control. In addition, due to the existence of the tracking filter board, the output distance pulse is not very uniform at a stable vehicle speed. Therefore, the non-contact photoelectric vehicle speed sensor is not suitable for real-time vehicle speed measurement (such as ABS test).
●Compared with the above two test devices, GPS speed sensor is small in size, light in weight, extremely convenient to install and use, and can realize accurate measurement of braking distance. It is an ideal device for measuring vehicle speed.
|GPS update frequency (Hz)||100||20||10||5|
|Intelligent interpolation frequency (Hz)||1000||600||400||200|
|Active antenna||Imported 3～5V high gain and low voltage||Imported 3～5V high gain and low voltage||Domestic 3～5V high gain and low voltage||Domestic 3～5V high gain and low voltage|
|Original Speed Accuracy||0.03m/s (0.1km/h)||0.03m/s (0.1km/h)||0.1m/s (0.36km/h)||0.1m/s (0.36km/h)|
|Distance pulse output frequency||10Hz～25kHz||10Hz～25kHz||10Hz～25kHz||10Hz～25kHz|
|Pulse equivalent||1～10mm/pulse (default 4mm)||1～10mm/pulse (default 4mm)||1～10mm/pulse (default 4mm)||1～10mm/pulse (default 4mm)|
|Distance measurement accuracy||Better than ±0.3% (absolute accuracy ±10cm)||Better than ±0.5% (absolute accuracy ±20cm)||Non-high dynamic conditions are better than ±0.5%||Non-high dynamic conditions are better than ±0.5%|
|Speed frequency conversion accuracy||Better than 0.03% (0.1km/h)||Better than 0.03% (0.1km/h)||Better than 0.03% (0.1km/h)||Better than 0.03% (0.1km/h)|
|Speed frequency conversion resolution||Better than 0.00025Hz (0.0036km/h)||Better than 0.00025Hz (0.0036km/h)||Better than 0.00025Hz (0.0036km/h)||Better than 0.00025Hz (0.0036km/h)|
|Processor frequency (MHz)||100||100||50||50|
|Display function||3 LED indicators or 1.54-inch OLED display (optional, order specified)|
Standard configuration: SMA antenna, power input
Optional: pedal trigger switch, RTK digital radio module and antenna, 4G module (KD-5/10 does not support)
Standard 4 options 1: (1) distance pulse output; (2) RS232 communication; (3) vehicle speed voltage output (0～5V); (4) RS485 communication
Optional: Pedal switch output, TTL level, low level effective
|Power supply||12V, power consumption is about 3W||12V, power consumption is about 3W||12V, power consumption is about 2W||12V, power consumption is about 2W|