专利汇可以提供Wi-Fi enabled telemetry专利检索,专利查询,专利分析的服务。并且A wireless telemetry system that leverages the ubiquitous Wi-Fi routers and public internet to communicate the level of propane in a tank to the propane distributor is disclosed. The system also allows the user of the fuel to monitor the level and modify the usage habits. Furthermore, the distributor can use the system to deliver the fuel efficiently. The system can also be used to monitor various utility meters for billing purposes wirelessly without the need to send personnel to the sites.,下面是Wi-Fi enabled telemetry专利的具体信息内容。
I claim:
This invention, in general, relates to a wireless system that can send various sensor and metering data from residential and commercial building sites to monitoring sites with the help of Wi-Fi and internet. In particular, this invention discloses a system which communicates the status of level of propane in a tank located at the customer premise to the distributor site automatically using Wi-Fi and public internet commonly available in residential and commercial buildings.
In order to save labor and transportation costs, many propane distributors currently use proprietary wireless systems to sense the propane tank level remotely. Such systems typically employ a Hall-effect level sensor, a wireless transmitter attached to the tank which is located outside of the residential building and a wireless receiver, located inside the building, which receives the data from the transmitter and sends it over wired telephone line or a leased line to the server computer located at the third party monitoring service. The distributor has access to this data from the monitoring service via email, fax, or other means. When the propane level drops below a preset level, the server sets off an alarm and the distributor will send the refilling truck to fill up the tank. Such proprietary wireless systems are expensive and also require professional installation as well as a third party monitoring service. They are designed to do only one task, in this case monitoring the tank level. To do another task such as monitoring an electric utility meter they will have to be completely redesigned. Such lack of flexibility requires multiple systems to do multiple tasks. Further more the customer has no access to the data being monitored as a consequence the customer cannot optimize the system at will.
This invention overcomes problems of the prior art by leveraging standardized, inexpensive, and commonly available hardware; in most cases much of it already exists in the residential dwellings.
The present invention provides a flexible, inexpensive wireless sensing system to sense the tank level and send the data over the commonly available public internet. The Hall-effect sensor is similar to the prior art. However, unlike the prior art, the digital data generated by this sensor is fed to a Wi-Fi (an industry standard short range wireless protocol promoted by a trade group called Wi-Fi Alliance) transmitter which is a standardized commonly available technology. The data is transmitted using the standardized Wi-Fi protocol. Inside the building, unlike the prior art, the data will be received by a wireless router (a wireless router, in addition to acting as gateway to the residential internet access, allows sharing of the internet access amongst many computers and other appliances using short range wireless communication) which is commonly used for wireless internet access inside the building. Since this router already exists for common internet access, there's no additional expense is involved. The wireless router further sends the data to host PC (a computer that is directly hardwired to the router either through an USB or Ethernet connection) where a software client application allows the customer full control of the flow of the data. The customer can then choose to send the data to the propane distributor either manually or automatically. Unlike the prior art, the customer has full control of when and how the data is sent out to the distributor. For example, he can instruct the client application to automatically send it to the distributor's server over the standard internet as soon as a certain preset level is reached. Or he or she can enter the refill request on the distributor's website. The customer has full control. Since the transmitter and receiver are standard Wi-Fi hardware commonly available off the shelf, the system will be inexpensive. Since all of the sensors and meters can be made to work with Wi-Fi or other similar standards the system can be expanded to monitor other sensors and meters easily. The data is conveniently and securely sent to the server computer at the discretion of the customer.
Standardized Wi-Fi wireless link and use of internet will result in an inexpensive yet very flexible system that can be easily expanded. Most importantly the customer controls the flow of the data and the preset levels. The latter has the added benefit of requesting the refill when the fuel prices are more favorable. Also, since the customer has access to the utilization data, he or she has the option of optimizing the consumption to manage the budget better.
In the Figures,
In both implementations the residential customer has little control of the decision loop of when the tank is refilled.
While this invention is susceptible to embodiment in many different forms, this specification and the accompanying drawings disclose only preferred forms as examples of the invention. The invention is not intended to be limited to the embodiments so described, however. The scope of the invention is identified in the appended claims.
Referring to
Although the method is described for the delivery of propane fuel, it could just as well be used to monitoring the electric, water, gas and other utilities supplied by cities to its citizens. The utility company will save money by reducing the manpower needed to read meters on regular basis and the users of the utilities will greatly benefit from knowing the usage profile which allows them to modify their usage habits to minimize the costs and also indirectly reduce the environmental burden. Similarly, the system can be easily adapted to serving remote vending machines and such.
Numerous variations and modifications of the embodiment described above may be effected without departing from the spirit and scope of the novel features of the invention. It is to be understood that no limitations with respect to the specific system illustrated herein are intended or should be inferred. It is, of course, intended to cover by the appended claims all such modifications as fall within the scope of the claims.
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