Method, terminal and system for reinforcing railway urgent call
A technology of emergency call and implementation method, which is applied in the direction of railway signal and safety, radio/inductive link selection arrangement, selection device, etc., can solve the problem of high cost of eREC, and achieve the effect of cost saving
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Embodiment 1
[0056] This embodiment describes the process that a train supporting the eREC mode joins an eREC call by dynamically updating the activation status of the local group ID and judging by group ID matching.
[0057] The group call reference structure adopted in this embodiment is as follows Figure 2A As shown, the values 1-9 of the line ID bits respectively identify different lines in a certain group call area. Identify any lines.
[0058] The train in this embodiment supports the eREC mode, and the train joins the flow of the railway emergency call, and the specific steps include:
[0059] Step 401, when train A enters line 2 from line 1, it receives a line ID update signal (such as a line ID update signal leaving line 1, and a line ID update signal entering line 2), indicating that train A is leaving line 1 Enter line 2. According to the received line ID update signal, the train A sets the group ID 1299 corresponding to the line 1 to an inactive state, and sets the group ...
Embodiment 2
[0067] This embodiment describes the process that a train supporting the eREC mode does not join the eREC call by dynamically updating the activation status of the local group ID and judging by group ID matching.
[0068] The group call reference structure adopted in this embodiment is as follows Figure 2A As shown, the values 1-9 of the line ID bits respectively identify different lines in a certain group call area. Identify any lines.
[0069] The train in this embodiment supports the eREC mode, and the train joins the flow of the railway emergency call, and the specific steps include:
[0070] Step 501. When train A enters from line 1 to line 2, a line ID update signal is received. According to the received line ID update signal, the train A sets the group ID 1299 corresponding to the line 1 to an inactive state, and sets the group ID 2299 corresponding to the current line 2 to an active state.
[0071] Step 502: The GSM-R network initiates a group call notification a...
Embodiment 3
[0077] This embodiment describes the process that a train supporting the eREC mode joins an eREC call in a manner equivalent to the REC mode by dynamically updating the activation state of the local group ID.
[0078] The group call reference structure adopted in this embodiment is as follows Figure 2A As shown, the values 1-9 of the line ID bits respectively identify different lines in a certain group call area. Identify any lines.
[0079] The train in this embodiment supports the eREC mode, and the train joins the flow of the railway emergency call, and the specific steps include:
[0080] Step 601, when train A departs from line 1 and does not receive the update signal of the new line ID, the train A sets the group ID 1299 corresponding to line 1 to non- In the activated state, since the train has not received or has not received update signals of other line IDs within the specified time, the train A sets the local group ID 299 or group ID 0299 to the activated stat...
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