Patent Application
20080111667
The present invention relates generally to wireless communication, and more specifically to wireless communication in a driver services market.
Several modes of transportation exist for delivering goods from one place to another. Some of the commonly used modes are trailers, cargo containers shipped by boat, and rail boxcars. A driver is seated in a cab in front of the tractor trailer, the boat or the train in each of these cases and the goods are placed in the trailer, the cargo container and the boxcar respectively.
Communication to the driver transporting the goods is desirable for various reasons. Some of the common reasons include alerting the driver of extreme weather conditions and traffic alerts, obtaining information regarding condition of the trailer such as tire pressure, and also providing information regarding the goods being carried, such as temperature of the goods.
One technique of transmitting information from the cargo unit to the driver in a cab of a tractor trailer, as an example, is through a wired connection to an electronic receiver installed in the cab that communicates information to the driver seated in the cab.
However, such techniques are inefficient and expensive as they require installation of a dedicated device in each cab that needs to receive communication. Further, it is commonly observed that the same tractor cab is used with trailers from different companies, each of which may use a different type of sensor input device. Hence, in order to operate with trailers belonging to different companies, the tractor may require multiple such dedicated receiving devices, unless each trailer company uses the same dedicated device for communication.
Therefore, there is a need for an improved communication system to address the aforementioned issues.
In accordance with an embodiment of the invention, a device mounted on a trailer is provided. The device includes at least one input from a sensor input device or at least one external communication device. The device also includes a receiver configured to receive an incoming data via either the sensor input device or the external communication device. The device further includes a processor configured to generate an alert message to be associated with the trailer on which the system is mounted. The device also includes a transmitter configured to broadcast a signal containing the alert message to a cab in the tractor trailer.
In accordance with another embodiment of the invention, a system for communication is provided. The system includes a remote hub. The system also includes a receiver in a cab of the tractor trailer configured to receive a wireless signal containing an alert message from the remote hub.
In accordance with another embodiment of the invention, a method of operation is provided. The method includes receiving a signal corresponding to an incoming data via a remote hub. The method also includes determining if the incoming data needs to be compared with a preset data threshold. The method further includes transmitting the incoming data to a receiver in a cab of a tractor trailer if no comparison is needed. The method also includes comparing the incoming data with the preset data threshold if a comparison is needed. The method also includes determining if an alert message should be made based upon comparison. The method also includes producing the alert message. The method further includes broadcasting the alert message to the receiver in the cab of the tractor trailer.
These and other features, aspects, and advantages of the present invention will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:
As discussed in detail below, embodiments of the present invention include a system for simplified communication and a method of operating the same. As used herein, ‘simplified communication’ refers to communication from a trailer or cargo unit that may contain an inventory of goods and the driver in a cab of a vehicle associated with the trailer or cargo unit. Various kinds of information may be needed to be transmitted to a driver or a cab from the trailer. Some non-limiting examples of such information may include inventory related data such as real time temperature of the inventory and the physical loads that the inventory is subject to during transport. In another example, the information may be related to condition of the trailer such as tire pressure and condition of bearings. Back offices and control stations that track trailers may also generally need to communicate information to drivers of such vehicles. Some non-limiting examples of the information may include location based information such as traffic alerts, locations of nearby restaurants, and weather related information. Some non-limiting examples of the vehicles may include trailer trucks and cargo ships.
The back end control station 22 may communicate various types of information to the driver through the remote hub 18. In a particular embodiment, the back end control station 22 may send a weather alert signal to the remote hub 18 that is to be communicated to the driver. In another embodiment, the back end control station 22 may send an alert signal regarding traffic delays on relevant routes to the remote hub 18 that forwards the same to the driver. In another embodiment, a message may be transmitted directly from the trailer 12 to the cab 16. A non-limiting example of the message may include tire pressure of the trailer. In yet another embodiment, a message may be transmitted directly from inventory in the trailer 12 to the cab 16. A non-limiting example of the message may include temperature of the inventory.
The remote hub 18 may also be used to transmit various types of information pertaining to the trailer to a driver. In a particular embodiment, the remote hub 18 may sense that temperature of surrounding air has exceeded a critical or a preset temperature of perishable goods being shipped via a temperature sensor. In such a case, the remote hub 18 sends an alert message to the driver informing him about the same. In another embodiment, the remote hub 18 may sense the pressure in one of the tires to be lower than a desired value via a pressure sensor. In such a case, the remote hub 18 may transmit an alert message to the driver regarding the same. In yet another embodiment, the remote hub 18 may receive a signal about a door being open via a sensor attached on a door. In such a case, the remote hub 18 sends a corresponding alert message to the driver. In another example, the remote hub 18 may send an alert message regarding humidity in the trailer reaching a critical value.
In an example of such a simplified trailer driver communication, a weather alert may be transmitted to a driver in a cab of a tractor trailer as a voice message via a FM signal. An example of such a voice message may be “Communication system must interrupt this satellite radio broadcast with a message from your dispatcher. On route to your next destination, there is a 70 percent chance of heavy thunderstorms along highway 90 East between exits 23-34 leading to extensive delays. For detour information, please consult your visual map display.” In another example, an alert regarding temperature may be broadcasted to the driver in the cab via a WiFi signal onto a handheld device with a text message such as “Communication system must interrupt with this message. The temperature in the trailer has reached the critical temperature.”
The various embodiments of a system for simplified communication and a method of operating the same described above thus provide a way to achieve a low cost and efficient communication from a cargo unit such as a trailer to a driver in a cab of a trailer truck system. These techniques and systems also allow a communication system with minimal modification to an existing infrastructure.
Of course, it is to be understood that not necessarily all such objects or advantages described above may be achieved in accordance with any particular embodiment. Thus, for example, those skilled in the art will recognize that the systems and techniques described herein may be embodied or carried out in a manner that achieves or optimizes one advantage or group of advantages as taught herein without necessarily achieving other objects or advantages as may be taught or suggested herein.
Furthermore, the skilled artisan will recognize the interchangeability of various features from different embodiments. For example, the use of a text alert message to communicate to a driver in a cab of a trailer truck described with respect to one embodiment can be adapted for use with an alert message being transmitted via FM radio described with respect to another. Similarly, the various features described, as well as other known equivalents for each feature, can be mixed and matched by one of ordinary skill in this art to construct additional systems and techniques in accordance with principles of this disclosure.
Although the systems herein have been disclosed in the context of certain preferred embodiments and examples, it will be understood by those skilled in the art that the invention extends beyond the specifically disclosed embodiments to other alternative embodiments and/or uses of the systems and techniques herein and obvious modifications and equivalents thereof. Thus, it is intended that the scope of the invention disclosed should not be limited by the particular disclosed embodiments described above, but should be determined only by a fair reading of the claims that follow.
While only certain features of the invention have been illustrated and described herein, many modifications and changes will occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.
