Mobile router with serial device interface

• US 8,072,994 B2
• Filed: 05/15/2007
• Issued: 12/06/2011
• Est. Priority Date: 05/16/2006
• Status: Active Grant

• Current Assignee: Lear Corporation
• Original Assignee: Autonet Mobile, Inc.
• Inventors: Moeller, Doug S.
• Primary Examiner(s): ADDY, ANTHONY S
• Application Number:
  US12/514,054
• Publication Number:
  US 20100118846A1
• Time in Patent Office: 1,666 Days
• Field of Search: 370/310, 370/328, 370/331, 370/332, 370/338, 370/346, 370/359, 370/401, 370/419, 370/463, 370/216, 455/3.01, 455/11.1, 455/41.2, 455/403, 455/422.1, 455/432.1, 455/435.1, 455/436, 455/445, 455/456.1, 455/95, 455/552.1, 455/556.1, 455/557, 455/561, 709/203, 709/227, 709/228
• US Class Current: 370/401
• CPC Class Codes: H04L 12/2856 Access arrangements, e.g. Internet access asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 43/50 Testing arrangements
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/59 Providing operational support to end devices by off-loading in the network or by emulation, e.g. when they are unavailable
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 76/18 Management of setup rejection or failure
• CPC Class Codes: H04W 76/19 Connection re-establishment
• CPC Class Codes: H04W 76/25 Maintenance of established connections
• CPC Class Codes: H04W 84/005 Moving wireless networks
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

A mobile router having a serial interface is disclosed. According to various embodiments, the mobile router may comprise a serial port data publisher module that may take data received from a serial device connected to a serial port of the mobile router and make the data from the serial device available via a TCP stream. In that way, the serial port data publisher module may be used, for example, to populate a remote database with the data from the serial device. That way, the data from the serial device may be remotely accessed via the Internet, for example. In addition, the mobile router can be used to output a received signal from the device connected to its serial interface.

Claims

1. A mobile router comprising:

a local network interface to wirelessly communicate with a mobile device via a local wireless network;

a backhaul network interface to wirelessly communicate via a backhaul network to establish a layer 2 communications link and a layer 3 communications link ;

one or more processors;

a serial data device interface to communicate with a serial data device connected to said interface; and

a memory in communication with said one or more processors and said serial data device interface;

a link monitor program executable by said one or more processors;

said one or more processors executing said link monitor program to monitor said layer 2 and layer 3 communications links over said backhaul network interface;

said one or more processors executing said link monitor program to reestablish communications via said layer 2 and said layer 3 links when a communications failure via said layer 2 communications link is detected and to reestablish communications via said layer 3 communications link when a communications failure via only said layer 3 communications link is detected;

said one or more processors operable with said link monitor program to send test data packets via said layer 2 and said layer 3 links and adaptively operable to control a frequency at which test packets are sent based upon receipt of data packets;

said one or more processors operable with said link monitor program;

to detect an attempt by said mobile device to establish a transport protocol session between said mobile device and a destination device, and when said attempt is detected, initiate a first replacement transport protocol session between said mobile router and said mobile device over said local wireless network and a second replacement transport protocol session between said mobile router and said destination device over said backhaul network; and

a data publication program executable by said one or more processors to selectively communicate at said serial data device interface over said backhaul network to a destination device.

2. The mobile router of claim 1, wherein:

said serial data device interface receives data from a GPS receiver; and

said data comprises location data from said GPS receiver.

3. The mobile router of claim 1, wherein

said serial data device comprises a serial data device selected from the group consisting of a GPS receiver, a vehicle telematics device, a point-of-sale (POS) device, and a remote control.

4. The mobile router of claim 1, wherein:

said one or more processors cause test packets to be transmitted via said backhaul network interface to a destination device over the backhaul network.

5. The mobile router of claim 4, wherein:

said one or more processors adapt how often to send said test packets to said destination device based on whether a network connection to said backhaul network is active.

6. The mobile router of claim 4, wherein:

said one or more processors determine if a network connection to said backhaul network is active and said one or more processors send said test packets to destination device less often when a network connection to said backhaul network is active.

7. The mobile router of claim 1, wherein said local wireless network comprises one or more of a Wi-Fi network and a Wi-MAX network.

8. The mobile router of claim 1, wherein:

said backhaul network comprises a cellular network.

9. The mobile router of claim 8, wherein said cellular network comprises one of a GSM/GPRS network or UMTS network

10. The mobile router of claim 1, wherein:

said mobile device is a wireless-enabled computer device selected from the group consisting of a laptop equipped with a wireless network interface card, a wireless-enabled PDA, a pocket computer, a WiFi phone, a WiFi appliance, a portable, network-enabled gaming station, a video screen, a digital camera, an audio player, a navigation device, a security camera, an alarm device, a wireless payment device, and a wireless POS device.

11. The mobile router of claim 1, wherein:

said mobile router is adapted to be installed in a vehicle.

12. The mobile router of claim 11, wherein:

the vehicle is a vehicle selected from the group consisting of an automobile, a truck, a rail car, a bus, and a boat.

13. A method comprising:

providing a mobile router comprising;

a local network interface to interface to a local network, a backhaul network interface to interface with a backhaul network, one or more processors, a serial data device interface, a link monitor program executable by said one or more processors, and a data publication program executable by said one or more processors;

operating said mobile router to wirelessly communicate with a mobile device via said local network interface;

operating said mobile router to wirelessly communicate via said backhaul network interface;

operating said mobile router to communicate with a serial data device connected to said serial device interface;

detecting an attempt by said mobile device to establish a transport protocol session between said mobile device and a destination device through said mobile router over said local wireless network and said backhaul network;

initiating, when said attempt to establish said protocol session is detected, a first replacement transport protocol session between said mobile router and said mobile device over said local wireless network and a second replacement transport protocol session between said mobile router and said destination device over said backhaul network;

monitoring layer 2 and layer 3 communications links over said backhaul interface network;

said monitoring step comprising;

executing said link monitor program by said one or more processors such that said one or more processors monitor layer 2 and layer 3 communications links over said backhaul network interface;

executing said link monitor program by said one or more processors to detect a communications failure via said layer 2 communications link;

executing said link monitor program by said one or more processors to detect a communications failure via said layer 3 communications link;

executing said link monitor program by said one or more processors to send test data packets via said layer 2 and said layer 3 links and to adaptively operate to control a frequency at which test packets are sent based upon receipt of data packets;

operating said one or more processors to reestablish communications via said layer 2 communications link when a communications failure via said layer 2 communications link is detected;

operating said one or more processors to reestablish communications via said layer 3 communications link when a communications failure via said layer 3 communications link is detected; and

executing said data publication program by said one or more processors to selectively communicate data received at said serial data device interface over said backhaul network to a destination device.

14. The method of claim 13, comprising:

receiving location data at said serial data device interface from a GPS receiver.

15. The method of claim 13, comprising;

receiving data at said serial data device interface from a data device selected from the group consisting of a GPS receiver, a vehicle telematics device, a point-of-sale (POS) device, and a remote control.

16. The method of claim 13, wherein:

said monitoring step comprises sending test packets to a destination device over said backhaul network.

17. The method of claim 16, further comprising:

determining whether a network connection to said backhaul network is active; and

adapting the frequency at which said test packets are sent to said destination device based on whether the network connection to the backhaul network is active.

18. The method of claim 16, comprising:

determining whether network connection to said backhaul network is active; and

sending said test packets to said destination device less frequently when the network connection to said backhaul network is active.

19. The method of claim 13, comprising:

operating said local network interface to interface to at least one of a wireless Wi-Fi network and a wireless Wi-MAX network.

20. The method of claim 13, wherein

operating said mobile router to wirelessly communicate with a mobile device via said local network interface

communicating via said local network interface with one or more wireless mobile devices comprising one or more of a laptop equipped with a wireless network interface card, a wireless-enabled PDA, a pocket computer, a WiFi phone, a WiFi appliance, a portable, network-enabled gaming station, a video screen, a digital camera, an audio player;

a navigation device, a security camera, an alarm device, a wireless payment device, and a wireless POS device.

21. The method of claim 13, wherein:

said mobile router is installed in a vehicle.

22. The method of claim 21, wherein:

said vehicle is one an automobile, a truck, a rail car, a bus, and a boat.

23. The method of claim 13, comprising:

utilizing said backhaul network interface to communicate via a cellular network.

24. The method of claim 23, wherein:

said cellular network comprises one of a GSM/GPRS network and a UMTS network.