Application of RFID technology in the field of motors
Radio Frequency Identification (RFID) technology, also known as RFID, radio frequency identification, can identify specific targets and read and write related data through radio signals without identifying mechanical or optical contact between the system and a specific target.
Nowadays, a wide range of RFID-related products and applications are emerging, and the label can be attached to a car in production. The manufacturer can track the progress of the car on the production line; the warehouse can track the location of the drug; the identity of the radio frequency identification The identification card allows the employee to enter the area of the corresponding authority; the RF transponder on the car can also be used to collect tolls and parking fees.
So, when the RFID technology encounters the traditional motor field, what kind of spark will it collide? We can see that RFID transmits data by radio signal. The signal of the radio is transmitted through the tag attached to the item by the electromagnetic field modulated by the radio frequency to automatically identify and track the item. This paper intends to sort out the application of radio frequency identification technology in the field of motors through the Chinese patent literature database, hoping to help the industry understand the patent application status and technology development trend in this field, and thus make a positive patent layout.
Analysis of the total number of patent applications
The data selected in this paper is the patent application of domestic and foreign applicants in China after the application date in 1990. Figure 1 shows the distribution of patent applications involving radio frequency identification technology in the field of electrical machinery in the Chinese Patent Literature Database. From the results of the search, although the radio frequency identification technology has been matured for decades and has been widely used in various fields, it is still a very new technology branch in the field of motors, and the number of applications in China. Not many, still in the initial stage of development and application. As of January 2014, the author has retrieved 27 related patent applications; the first patent application started in 1990 and was submitted by Westinghouse Electric Company of the United States to determine whether the motor really has a motor by detecting the RF signal in the motor. Faulty patent application. In 1990, the rapid development of radio frequency identification technology made technicians in the field of motors pay more attention to this technology and hoped to obtain new application development in the field of motors. The first related patent application submitted by the Chinese applicant began in 2009 and was a patent application submitted by Huazhong University of Science and Technology for wireless detection of motor speed using radio frequency signals. Among the 27 patent applications, the total number of patent applications filed by domestic applicants reached 61% of the total number of applications in China, which indicates that although China started late in this field, the number of applications came later, which reflects the application of China. In recent years, due to the emphasis on intellectual property protection, the company's scientific research investment has increased, and the number of patent applications has maintained a gradual upward trend.
Analysis of the types of domestic patent applicants and the field of application
At present, in all 27 patent applications involving radio frequency identification technology, utility model patent applications account for 48% of the total number of applications, and invention patent applications account for 52% of the total applications, including the Patent Cooperation Treaty ( The patent applications submitted by the PCT route accounted for 19% of the total number of applications, while the domestic applicants submitted mainly utility model patent applications, accounting for 76% of the total number of domestic applicants' patent applications, and the invention patent applications accounted for domestic applicants. 24% of the total number of patent applications, and some patent applications of domestic applicants are partially improved on the basis of existing patents, and because most applicants have insufficient mastery of the current state of the art, their inventions are highly desirable. Therefore, the utility model patent application is generally submitted.
