Wireless data offload system
First Claim
1. A system for transferring video surveillance data between a mobile communication unit of a public transportation vehicle and a wayside communication unit, said system comprising:
- a mobile communication unit and a wayside communication unit, wherein;
the mobile communication unit is arranged to obtain video surveillance data from one or more video surveillance cameras arranged in functional connection with the mobile communication unit, the mobile communication unit including;
a video recorder arranged to buffer at least a part of the obtained video surveillance data before transmission to the wayside communication unit;
at least one encoder arranged to encode said obtained video surveillance data into a stream format compatible with a wireless standard, anda transmitter arranged to transmit the encoded video surveillance data stream in accordance with said wireless standard to the wayside communication unit; and
the wayside communication unit includes a receiver arranged to receive the encoded video surveillance data stream in accordance with said wireless standard, and wherein the wayside communication unit is arranged to;
monitor whether a transmission signal from the mobile communication unit is available;
check that a quality of the transmission signal is sufficient for transmitting the encoded video surveillance data stream and, if affirmative send an offload request to the mobile communication unit; and
wherein in response to receiving an acknowledgement from the mobile communication unit, the wayside communication unit is arranged to;
start reception of the encoded video surveillance data stream by synchronising into the transmission signal; and
forward the encoded video surveillance data stream to a data target for decoding.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for transferring data between a mobile communication unit and a wayside communication unit; the mobile communication unit being arranged to obtain data from one or more data sources arranged in functional connection with the mobile communication unit, the mobile communication unit comprising at least one encoder arranged to encode said data into a stream format compatible with a broadcast standard and a transmitter arranged to transmit the encoded data stream in accordance with said broadcast standard to the wayside communication unit; and the wayside communication unit comprising a receiver arranged to receive the encoded data stream in accordance with said broadcast standard, the wayside communication unit being arranged to forward the encoded data stream to a data target for decoding.
-
Citations
20 Claims
-
1. A system for transferring video surveillance data between a mobile communication unit of a public transportation vehicle and a wayside communication unit, said system comprising:
- a mobile communication unit and a wayside communication unit, wherein;
the mobile communication unit is arranged to obtain video surveillance data from one or more video surveillance cameras arranged in functional connection with the mobile communication unit, the mobile communication unit including; a video recorder arranged to buffer at least a part of the obtained video surveillance data before transmission to the wayside communication unit; at least one encoder arranged to encode said obtained video surveillance data into a stream format compatible with a wireless standard, and a transmitter arranged to transmit the encoded video surveillance data stream in accordance with said wireless standard to the wayside communication unit; and the wayside communication unit includes a receiver arranged to receive the encoded video surveillance data stream in accordance with said wireless standard, and wherein the wayside communication unit is arranged to; monitor whether a transmission signal from the mobile communication unit is available; check that a quality of the transmission signal is sufficient for transmitting the encoded video surveillance data stream and, if affirmative send an offload request to the mobile communication unit; and wherein in response to receiving an acknowledgement from the mobile communication unit, the wayside communication unit is arranged to; start reception of the encoded video surveillance data stream by synchronising into the transmission signal; and forward the encoded video surveillance data stream to a data target for decoding. - View Dependent Claims (2, 3, 4, 5)
- a mobile communication unit and a wayside communication unit, wherein;
-
6. (canceled)
-
7. A method for transferring video surveillance data between a mobile communication unit of a public transportation unit and a wayside communication unit, the method comprising:
-
obtaining video surveillance data from one or more video surveillance cameras arranged in functional connection with the mobile communication unit; buffering at least a part of the video surveillance data before transmission to the wayside communication unit; encoding said video surveillance data into a stream format compatible with a wireless standard; monitoring, by the wayside communication unit, whether a transmission signal from the mobile communication unit is available; checking that the quality of the transmission signal is sufficient for transmitting the encoded video surveillance data stream and, if affirmative, sending an offload request to the mobile communication unit; wherein in response to receiving an acknowledgement from the mobile communication unit, starting, by the wayside unit, reception of the encoded video surveillance data stream by synchronising into the transmission signal; and transmitting the encoded video surveillance data stream in accordance with said wireless standard to the wayside communication unit for further forwarding the encoded video surveillance data stream to a data target for decoding. - View Dependent Claims (8, 9, 10, 11)
-
-
12. (canceled)
-
13. A mobile communication unit of a public transportation vehicle arranged to obtain video surveillance data from one or more video surveillance cameras arranged in functional connection with the mobile communication unit, the mobile communication unit comprising;
-
a video recorder arranged to buffer at least a part of video surveillance data obtained from said one or more video surveillance cameras before transmission to a wayside communication unit; at least one encoder arranged to encode said video surveillance data into a stream format compatible with a wireless standard; and a transmitter arranged to transmit the encoded video surveillance data stream in accordance with said wireless standard to the wayside communication unit for further forwarding the encoded video surveillance data stream to a data target for decoding, wherein the mobile communication unit is further arranged to; receive an offload request from a wayside communication unit in response to checking that the quality of a transmission signal is sufficient for transmitting the encoded video surveillance data stream; send an acknowledgement to the offload request to the wayside communication unit; and start transmission to the wayside communication unit in response to a control signal obtained via the mobile communication unit.
-
- 15. (canceled)
-
16. (canceled)
-
17. A wayside communication unit comprising:
-
a receiver arranged to receive an encoded video surveillance data stream in accordance with a wireless standard from a mobile communication unit of public transportation vehicle, the data being obtainable from one or more video surveillance cameras arranged in functional connection with the mobile communication unit; and a processing means arranged to; monitor whether a transmission signal from a mobile communication unit is available; check that the quality of the transmission signal is sufficient for transmitting encoded video surveillance data stream and, if affirmative, to send an offload request to the mobile communication unit; wherein in response to receiving an acknowledgement from the mobile communication unit, processing means is further arranged to; start reception of the encoded video surveillance data stream by synchronising into the transmission signal; and forward the encoded video surveillance data stream to a data target for decoding. - View Dependent Claims (18, 19)
-
-
20. (canceled)
Specification