Analysis of Frequently Asked Questions about Ball Machines-Technical Chapter
1. The code transfer light does not flash.
Anyone who knows about monitoring control knows that when using a hard disk video recorder to control the PTZ, it is usually controlled through the serial port. But usually the serial port (ie COM port) of the hard disk video recorder transmits the 232 signal. So a code converter was connected behind the serial port to convert the 232 signal into the 485 signal to enhance the signal transmission distance, anti-interference ability and enhance its encoding function. Generally, code transcoding manufacturers will add a code transcoding working indicator light on it. When a signal is transmitted, the working indicator light will flash continuously. The light does not flash, mainly because there is no control signal transmitted to the code transducer.
Solution:
Check that there is no problem with the 232 to 485 code conversion (measure whether there is a DC current output of 4V-5V at the output end), if not, replace the code conversion. Check whether the 485 signal line is smooth, whether the PTZ address protocol matches the software address protocol, and replace the serial port (com).
2. Uncontrollable.
After the control signal is sent, the decoder is out of control and cannot receive instructions (judged from the indicator lights and sounds inside the decoder).
Solution:
First check whether the power supply of decoder is normal and whether it can perform normal self-test. Then Bishun confirms whether the control signal has been transmitted to the decoder. Usually the decoder has a communication light. When a control signal is transmitted to the decoder, the indicator light will flash. If the indicator light does not move during control, check whether the code switch on the front control end is unplugged. The output signal is a 485 signal and whether there is any problem with the control signal transmission line. Then check whether A and B of the control line are connected incorrectly. When all hardware problems are eliminated, check whether the host settings and the decoder's code switch are correct. Mainly check from the aspects of control protocol, address code and baud rate. When there is no problem in communication between the decoder and the host, there will be a "ticking" sound inside the relay decoder when the host controls the decoder.
3. All gimbals cannot be used or some functions cannot be realized.
This refers to the problem that some functions of the gimbal can only move up and down or left and right, or the gimbal can move, but the camera cannot zoom.
Solution:
When all functions of the PTZ cannot be used, it is mostly because the PTZ is damaged or the wiring between the PTZ and the decoder is incorrectly connected (mainly the COM public terminal). Check the gimbal connections one by one according to the decoder manual. If it still cannot be controlled, use a multimeter to measure whether there is a voltage change when the common terminal and functional terminal of the decoder are controlled. If there is, it means there is a problem with the gimbal. If not, it means there is a problem with the output port of the decoder. Replace the decoder. When some functions of the gimbal cannot be realized, first check whether that part of the gimbal is physically damaged. If a platform cannot move upward, we can connect the upward connection and the common terminal to the AC24V voltage of a PTZ. The PTZ will be connected to an AC24V voltage, and the AC220V PTZ will be connected to an AC200V voltage. If it can move up normally, it proves that there is no problem with the PTZ, but a problem with the decoder.Decoder In addition to the physical damage of the decoder, the problem is the mismatch of the control protocol. For the latter, you can contact the manufacturer to provide a matching normal protocol.
4. The PTZ control signal is interfered with and the transmission signal is attenuated.
PTZ In addition to the above-mentioned problems, there are also some relatively easy faults. For example, the PTZ is sometimes normal and sometimes abnormal. Most of these PTZs are installed incorrectly (such as a formal installation instead of a hoisting one), which causes the PTZ to work abnormally and may cause damage to the PTZ in the long run. Another problem is interference. The common phenomenon is that the cloud keeps moving to the left or right without stopping, or the gimbal will rotate on its own without control. This is due to the attenuation and interference of the transmission signal.
Anyone who knows about monitoring control knows that when using a hard disk video recorder to control the PTZ, it is usually controlled through the serial port. But usually the serial port (ie COM port) of the hard disk video recorder transmits the 232 signal. So a code converter was connected behind the serial port to convert the 232 signal into the 485 signal to enhance the signal transmission distance, anti-interference ability and enhance its encoding function. Generally, code transcoding manufacturers will add a code transcoding working indicator light on it. When a signal is transmitted, the working indicator light will flash continuously. The light does not flash, mainly because there is no control signal transmitted to the code transducer.
Solution:
Check that there is no problem with the 232 to 485 code conversion (measure whether there is a DC current output of 4V-5V at the output end), if not, replace the code conversion. Check whether the 485 signal line is smooth, whether the PTZ address protocol matches the software address protocol, and replace the serial port (com).
2. Uncontrollable.
After the control signal is sent, the decoder is out of control and cannot receive instructions (judged from the indicator lights and sounds inside the decoder).
Solution:
First check whether the power supply of decoder is normal and whether it can perform normal self-test. Then Bishun confirms whether the control signal has been transmitted to the decoder. Usually the decoder has a communication light. When a control signal is transmitted to the decoder, the indicator light will flash. If the indicator light does not move during control, check whether the code switch on the front control end is unplugged. The output signal is a 485 signal and whether there is any problem with the control signal transmission line. Then check whether A and B of the control line are connected incorrectly. When all hardware problems are eliminated, check whether the host settings and the decoder's code switch are correct. Mainly check from the aspects of control protocol, address code and baud rate. When there is no problem in communication between the decoder and the host, there will be a "ticking" sound inside the relay decoder when the host controls the decoder.
3. All gimbals cannot be used or some functions cannot be realized.
This refers to the problem that some functions of the gimbal can only move up and down or left and right, or the gimbal can move, but the camera cannot zoom.
Solution:
When all functions of the PTZ cannot be used, it is mostly because the PTZ is damaged or the wiring between the PTZ and the decoder is incorrectly connected (mainly the COM public terminal). Check the gimbal connections one by one according to the decoder manual. If it still cannot be controlled, use a multimeter to measure whether there is a voltage change when the common terminal and functional terminal of the decoder are controlled. If there is, it means there is a problem with the gimbal. If not, it means there is a problem with the output port of the decoder. Replace the decoder. When some functions of the gimbal cannot be realized, first check whether that part of the gimbal is physically damaged. If a platform cannot move upward, we can connect the upward connection and the common terminal to the AC24V voltage of a PTZ. The PTZ will be connected to an AC24V voltage, and the AC220V PTZ will be connected to an AC200V voltage. If it can move up normally, it proves that there is no problem with the PTZ, but a problem with the decoder.Decoder In addition to the physical damage of the decoder, the problem is the mismatch of the control protocol. For the latter, you can contact the manufacturer to provide a matching normal protocol.
4. The PTZ control signal is interfered with and the transmission signal is attenuated.
PTZ In addition to the above-mentioned problems, there are also some relatively easy faults. For example, the PTZ is sometimes normal and sometimes abnormal. Most of these PTZs are installed incorrectly (such as a formal installation instead of a hoisting one), which causes the PTZ to work abnormally and may cause damage to the PTZ in the long run. Another problem is interference. The common phenomenon is that the cloud keeps moving to the left or right without stopping, or the gimbal will rotate on its own without control. This is due to the attenuation and interference of the transmission signal.
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