Patent classifications
G01D1/04
System, Method and Apparatus for Cumulative Sensing
In accordance with an example embodiment of the present invention, a system is disclosed. The system includes a sensing unit adapted to perform measurement of a parameter and produce an electrical signal based on the measurement; a memristive unit electrically coupled to the sensing unit and adapted to receive the produced electrical signal from the sensing unit, wherein the memristive unit is further adapted to produce a cumulative value of the received electrical signal over time; and a processing unit electrically coupled to the memristive unit and adapted to receive the produced cumulative value from the memristive unit, wherein the processing unit is further adapted to digitize the received cumulative value. A method and apparatuses are also disclosed.
System, Method and Apparatus for Cumulative Sensing
In accordance with an example embodiment of the present invention, a system is disclosed. The system includes a sensing unit adapted to perform measurement of a parameter and produce an electrical signal based on the measurement; a memristive unit electrically coupled to the sensing unit and adapted to receive the produced electrical signal from the sensing unit, wherein the memristive unit is further adapted to produce a cumulative value of the received electrical signal over time; and a processing unit electrically coupled to the memristive unit and adapted to receive the produced cumulative value from the memristive unit, wherein the processing unit is further adapted to digitize the received cumulative value. A method and apparatuses are also disclosed.
Resolver signal processing device, drive apparatus, resolver signal processing method, and program
A resolver signal processing device includes a deviation calculation unit, a PI operation unit, and an integration operation unit. The deviation calculation unit calculates a deviation between a first product obtained by multiplying a signal of phase A by a cosine value based on a reference phase θref and a second product obtained by multiplying a signal of phase B by a sine value based on the reference phase θref. The PI operation unit carries out a proportional integration operation which includes a first integration operation and is defined to converge the deviation on zero on the basis of the deviation. The integration operation unit carries out a second integration operation of integrating a value generated from a result of the proportional integration operation and outputs a result of the second integration operation as phase information of the resolver.
Resolver signal processing device, drive apparatus, resolver signal processing method, and program
A resolver signal processing device includes a deviation calculation unit, a PI operation unit, and an integration operation unit. The deviation calculation unit calculates a deviation between a first product obtained by multiplying a signal of phase A by a cosine value based on a reference phase θref and a second product obtained by multiplying a signal of phase B by a sine value based on the reference phase θref. The PI operation unit carries out a proportional integration operation which includes a first integration operation and is defined to converge the deviation on zero on the basis of the deviation. The integration operation unit carries out a second integration operation of integrating a value generated from a result of the proportional integration operation and outputs a result of the second integration operation as phase information of the resolver.
Driving aid control apparatus
An apparatus for performing driving aid control to cause a travel trajectory of a mobile object to follow a setpoint trajectory (La) by transmitting a control command value (δ) to a yaw moment controller capable of controlling a yaw moment of the mobile object. In the apparatus, a setpoint trajectory setter is configured to set the setpoint trajectory (La) of the mobile object. A control command value calculator is configured to calculate the control command value (δ) based on an integrated value (δI) of a lateral error that is an error between a position of the mobile object and the setpoint trajectory. The control command value calculator is further configured to decrease the integrated value (δI) with decreasing a curvature (ρ) of a road on which the mobile object is traveling.
RESOLVER SIGNAL PROCESSING DEVICE, DRIVE APPARATUS, RESOLVER SIGNAL PROCESSING METHOD, AND PROGRAM
A resolver signal processing device includes a deviation calculation unit, a PI operation unit, and an integration operation unit. The deviation calculation unit calculates a deviation between a first product obtained by multiplying a signal of phase A by a cosine value based on a reference phase θref and a second product obtained by multiplying a signal of phase B by a sine value based on the reference phase θref. The PI operation unit carries out a proportional integration operation which includes a first integration operation and is defined to converge the deviation on zero on the basis of the deviation. The integration operation unit carries out a second integration operation of integrating a value generated from a result of the proportional integration operation and outputs a result of the second integration operation as phase information of the resolver.
RESOLVER SIGNAL PROCESSING DEVICE, DRIVE APPARATUS, RESOLVER SIGNAL PROCESSING METHOD, AND PROGRAM
A resolver signal processing device includes a deviation calculation unit, a PI operation unit, and an integration operation unit. The deviation calculation unit calculates a deviation between a first product obtained by multiplying a signal of phase A by a cosine value based on a reference phase θref and a second product obtained by multiplying a signal of phase B by a sine value based on the reference phase θref. The PI operation unit carries out a proportional integration operation which includes a first integration operation and is defined to converge the deviation on zero on the basis of the deviation. The integration operation unit carries out a second integration operation of integrating a value generated from a result of the proportional integration operation and outputs a result of the second integration operation as phase information of the resolver.
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM
The present disclosure relates to an information processing apparatus, an information processing method, and a program, the information processing apparatus and the information processing method making it possible to appropriately combine observation values of a plurality of sensors according to the noise characteristics of the plurality of sensors and a condition for the observation values.
An Allan variance is calculated as the characteristics of each of the plurality of sensors. A time window length for an Allan variance is specified as a condition used when the observation values of the plurality of sensors are combined. A weight for each of the plurality of sensors is calculated such that a sum of the Allan variances for the specified time window length is smallest. The respective observation values of the plurality of sensors are combined using a sum of products of the observation values of the plurality of sensors and the weights each calculated for a corresponding one of the plurality of sensors. The present disclosure is applicable to a multi-IMU.
Sensor device management method and sensor device management system
A management server 103 holds a parameter of a sensor device 101 and change management information related to a change in the parameter, and transmits the changed parameter and the change management information to the sensor device. The sensor device 101 holds the parameter and the change management information transmitted from the management server, and transmits the change management information to the management server together with measurement data. The management server collates the received change management information and preliminarily-held change management information to determine the change in the parameter on the basis of a result of the collation.
Sensor device management method and sensor device management system
A management server 103 holds a parameter of a sensor device 101 and change management information related to a change in the parameter, and transmits the changed parameter and the change management information to the sensor device. The sensor device 101 holds the parameter and the change management information transmitted from the management server, and transmits the change management information to the management server together with measurement data. The management server collates the received change management information and preliminarily-held change management information to determine the change in the parameter on the basis of a result of the collation.