When installing a wired GPS tracker, we sometimes find a "remote fuel cut-off" function. However, this is often followed by the text "This function is to be used in conjunction with a relay". So what is a relay? What does it do and how is it wired? This article will give you the answer.
A. The role of automotive relays.
The remote oil/electricity cut-off relay described in this article is a control relay. It is the equivalent of a switch that draws the armature into the circuit by means of a magnetic field, thus driving the contacts to break the normally closed contacts. In this way, it plays the role of changing the control circuit. It is the key to controlling the circuit on and off.
Vehicle Relays Appearance and Work Internally
How to use the ca...
With the continuous improvement of everyone's living standards, cars have become a vital travel tool for everyone. Therefore, the GPS locator has become the most widely used machine in people's daily life. It has a wide range of applications and is suitable for different groups of people, such as the car rental industry. Many places have production locations for car gps tracker, so many people come to buy them. When you are ready to buy it, you must pay attention to the following knowledge points, otherwise you will not be able to buy your favorite product.
A. Compare the quality of the GPS locator
When we choose a GPS locator, we must learn to compare products. Many people who buy a new GPS tracker will say that the one I used before is better. But this is not correct, because each product is used at a different time and place, and the final result is different. It must be used for a long time to feel the difference between the two GPS locators. Choosing a trusted GPS tracker is a...
In people's social life, GPS applications are everywhere. When the global satellite positioning system is installed on a car, it can be used for real-time positioning, robbery alarm, car phone, theft alarm, manual navigation, remote fuel and power failure, remote unlocking of the door, and battery undervoltage alarm. When the global positioning satellite system is applied to the production command of oil field enterprises, it can monitor the operation of oil wells, oil and gas pipelines. It can also position electricity, water conservancy, and construction as well as dispatch and command buses and other freight vehicles. When the global satellite positioning system is used in social security and community services, it can locate and monitor the financial professions, flammable and explosive dangerous goods professions, and real-time dispatch. At the same time, it can also monitor residential quarters and household safety precautions. But it still depends on the more common applicati...
There are many GPS tracker manufacturers on the market, but how to choose a suitable for their own, next will teach you how to choose a good GPS tracker.
In terms of hardware(GPS tracker)
1, whether or not there is a battery, charging IC will increase the cost of $0.5, but it will make the battery in the trickle, constant current, constant voltage charging conditions, full automatically cut off the charging circuit, the damage to the battery is the least, not easy to cause battery damage. ERY boiler drum overheating, explosion and other accidents. The cost saving hardware does not need to charge the IC, but instead uses a current limiting resistor to connect the 4.xx voltage directly to the battery. The battery will always be in current-limited charging state. Battery life will be greatly reduced. Prone to bulge, explosion and other accidents. It's easy to have an accident when the phone is plugged into the charger all the time.
2. No matter whether the battery itself has overcurren...