The design of the cell phone jammer system is at the world’s level

The design of  cell phone jammer system will decide the quality of the  cell phone jammer system.
SCM receives the PDU data packets, it must be restored to the hex data, the algorithm is as follows: Let A be a receiver of the ASCII code, b is converted hexadecimal number. If a <39H, then b = a-30H; if a> 39H, then b = a-30H-07H, the before and after the last two numbers into one byte. Response to the single-chip cell phone number of bytes of PDU data packet does not include the first 9 bytes of data (short message service center address), but transferred to the microcontroller when the PDU data packet, including the 9 bytes of data. For example, if the cell phone response PDU data length is 50, while the actual transfer to the single-chip 59-byte hexadecimal data, ASCII code for the 2 × 59 bytes, so the microcontroller must be received by 2 × 59 bytes of PDU data. The expert group is making every effort to enhance the design of the cell phone jammer  system.
I use the above principles and interface technology to develop a project: Highway display guidance system. Installed on the highway in front of the LED display shows real-time road vehicle traffic situation and weather and climate conditions, advise and guide the driver, the correct driver. The use of the system to some extent, eliminate a lot of traffic hazards, thereby safeguarding the smooth flow of road safety and people's lives and property. The system consists of the control center and several display screen. Control center in real time the latest information sent to the display. Building control center communication link with the display terminal, the traditional method of laying fiber optic cable with the cable or the realization, or build a private wireless network allowing wireless. Because of the special nature of the highway, the control center and the distance between the display terminal is usually very far, two programs must invest a lot of money and huge construction effort. If the GSM public wireless transmission network, the control center to the form of text messages sent to the display terminal displays information technology solutions, then with a small investment, construction convenient, reliable, low running costs a lot of advantages. The design of the cell phone jammer system is at the world’s level.
In the control center, computer editing the short message sent via cell phone as a carrier. In the display terminal, single-chip cell phone short message by reading it to the LED display on the display. Project's core technology is the microcontroller interface with the cell phone in and PDU data packet character information coding. Because SMS is just a character in the coding, microcontroller applications, the data will be encoded into a character dot-matrix, you must configure the Chinese character. By GSM07.05 agreement, the short message in Chinese character encoding to Unicode encoding, if you build a Unicode encoded Chinese character, is really a tedious work, so, in the design of microcontroller applications, the use of the following two technical measures. The design of the   china cell phone jammer system should be considered in the first place.