A rf-sam module

Abstract

The embodiment of the invention discloses an RF-SAM. The function that a plurality of SAMs can be controlled directly through the control module by means of the design that a control module is connected with an RF module, a first SAM is directly connected with the control module, and the control module is connected with a plurality of second SAMs through a switching module. The RF-SAM comprises an RF module and the SAMs, the SAMs comprise the first SAM and the multiple second SAMs and further comprise the control module and the switching module. The RF module is connected with the control module, the first SAM is connected with the control module, the second SAMs are connected with the control module through the switching module, wherein the control module acquires a signal sent by the RF module and determines the SAM corresponding to the signal, if the SAM corresponding to the signal is the first SAM, a control signal is directly sent to trigger the first SAM, if the SAM corresponding to the signal is one of the second SAMs, the control signal is sent to trigger the second SAM through the switching module.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an RF-SAM module. Background technique [0002] With the rapid growth of the economy, urban construction is also developing vigorously. The development of the transportation industry reflects the economic level of a city or even a country. , the use of electronic tickets has been widely popularized. Electronic tickets are read by devices with functions of RF (Radio Frequency) and SAM (security access module). Came into being. [0003] The current ticket checking machine usually adds an RF-SAM module to the PDA (Personal Digital Assistant) to check the electronic tickets of rail transit. However, the types and technological content of electronic tickets have increased, resulting in In addition to reading electronic tickets, the types of SAM cards are also increasing. At the same time, different keys and algorithms can be used to read different electronic tickets. Therefore, ...

AI Technical Summary

Problems solved by technology

[0003] The current ticket checking machine usually adds an RF-SAM module to the PDA (Personal Digital Assistant) to check the electronic tickets of rail transit. However, the types and technological content of electronic tickets have increased, resulting in In addition to reading electronic tickets, the types of SAM cards are also increasing. At the same time, different keys and algorithms can be used to read different electronic tickets. Therefore, the existing technology of adding RF-SAM modules to PDAs cannot meet the requirements The demand for multiple SAMs. At the same time, due to the difference in SAM modules, the time for reading processing is also too long because the integration of the RF-SAM module added to the PDA is not high enough.

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