77results about How to "Avoid counting errors" patented technology

Counting device designed to determine the number of shots and cartridges in a weapon, which comprises an activator sensor (11) that supplies an activation signal to a processor (12) in response to a mechanical impulse; the processor (12) in turn supplies a counting-initiation signal to a counting sensor (13) that supplies at least two counting signals offset by a predetermined period of time to the processor (12).

The invention relates to a tag counting device comprising a rack; a tag transmission mechanism which is used for collecting or feeding tag backing paper and installed on the rack; a reversing mechanism which is installed on the rack and connected with the tag transmission mechanism so that the tag transmission mechanism is enabled to be switched between material collecting and feeding; and a counting mechanism which is arranged on the rack and connected with the reserving mechanism and can identify and count the tag, wherein counting of the counting mechanism increases when the reversing mechanism drives the tag transmission mechanism to feed the material, and counting of the counting mechanism decreases when the reversing mechanism drives the tag transmission mechanism to collect the material. According to the tag counting device, automatic counting of the tag can be realized through cooperation of the counting mechanism and the reversing mechanism, the counting efficiency can be enhanced, the labor intensity and the counting cost can be reduced and rapid switching between forward counting and reverse counting can also be realized so as to make up the mistake.

The invention provides a step counting method based on autocorrecting computing which comprises the following steps: collecting N three-axis acceleration data in a current time window by a three-axis acceleration sensor of a pedometer, calculating the module values of the N three-axis acceleration data and storing the calculated module values; collecting and calculating the module values of N three-axis acceleration data in a next time window, and taking the first L module values to be put behind the N module values to obtain N+L merged data, denoting the N+L merged data as sample data x (n); performing filtering and autocorrecting computing on the sample data x (n) to detect the number of wave crests of the sample data x (n); taking the number of wave crests as the step number detected in the current time window, and adding the step number and the current total step number together to obtain new current total step number; taking the next time window of the current time window as a new current time window and repeating the steps until the movement course is finished. According to the step counting method based on autocorrecting computing provided by the invention, through autocorrecting computing, the periodic features of periodic signals are highlighted in signals containing a great deal of noise, and the effective step number is detected according to the counted number of crest values of autocorrelation function, and the step counting accuracy is effectively improved.

The invention discloses a pest trapping and monitoring device, which comprises a top cover, a trapping unit, a detection case and a counter, the detection case comprises a case body and a funnel-shaped receiving tray arranged on the top of the case body, the trapping unit is arranged upon the receiving tray, and comprises a trapping source-mounting position and three to six electric fences, the top cover is arranged upon the trapping unit, and the counter is arranged in the case body. Within a vertical projecting plane, all the electric fences are arranged around the trapping source-mounting position as a center, moreover, all the electric fences are turned in the same direction, one end of each electric fence, which is close to the trapping source-mounting position, is a near end, the other end is a far end, and the near end of each electric fence is close to or in contact with the middle of another neighboring electric fence. The electric fences of the trapping unit of the pest trapping and monitoring device are arranged in the turned form according to the characteristics of the flying paths of pests, consequently, the probability of hitting the electric fences by winged insectscan be increased, and the trapping efficiency can be increased; and moreover, since the electric fences adopt the arrangement method, a trapping source can be conveniently mounted and replaced, and also can be protected.