Method for transmitting data by a sensor of a wireless safety system and a wireless safety system for implementation of method
AssigneeAjax Systems Cyprus Holdings Ltd
InventorsSerhii Dmytrovych Piannikov, Oleksandr Mykolayovych Tantsiura, Oleksii Yulianovych Biliavskyi
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Abstract
The invention refers to wireless safety systems and it relates to a method for transmitting data by a sensor of a wireless safety system that enables to transmit massive data to large distances (up to 2000 m). Also, a wireless safety system for implementation of the described method is proposed.
Claims14
A method for transmitting data by a sensor of a wireless safety system that comprises at least one sensor and a receiver, which are coupled by means of a radio communication, the method comprising:
- continuously exchanging data and/or data announcements, which are transmitted, by sending statuses and/or alarm signals through a main radio channel between the sensor and the receiver that is equipped with at least two radio modules, which are configured to perform the continuous data exchange, and activating a separate data channel for the data transmission using one of the radio modules that is not used for the main radio channel, and with a decision making unit, wherein the sensor, through said main radio channel by means of the alarm signal, sends a request regarding a necessary data transmission through the separate data channel to the receiver, by means of the decision making unit, the receiver sends to the sensor a signal regarding:
- beginning of the data transmission, or
- re-transmission of the request for using the data channel after a some time, or
- temporary withdrawal of the request until a separate command from the receiver is received, or
- removal of the data and withdrawal of the request,
- in response to the signal regarding the removal of the data and withdrawal of the request being received, the sensor will perform these actions and assign a status of a successful data transmission,
- in response to the signal regarding the re-transmission or regarding the temporary withdrawal of the request being received, the sensor will continue to send the request regarding the necessary data transmission through the separate data channel to the receiver until the signal regarding the beginning of the data transmission is received,
- in response to the signal regarding the beginning of the data transmission being received, the sensor will begin to transmit the data through the data channel by a continuous series of data packets, wherein at the end of the data transmission, the receiver sends a request with a control number of packets to confirm a completeness of the data transmission, after the control number of the packets and the fact that the data has been completely transmitted from the sensor are confirmed, the data transmission is terminated, and
- in response to there being no confirmation of the completeness of the data transmission, the transmission will be terminated and the sensor, after the data transmission is completed or terminated, switches to operation through the main radio channel, while the data channel is emptied for a next session of the data transmission.
A wireless safety system that comprises a receiver and at least one sensor with a main radio channel with TDMA and a separate data channel between them, the data channel is configured to transmit data continuously, wherein said radio channels are distributed across frequencies, and the receiver comprises at least two radio modules, one of which is reserved only for creation of the separate data channel, and a decision making unit that is configured to control the data reception through the data channel.
Dependencies are inferred from the claim text.