摘要:
Die vorliegende Erfindung betrifft eine Positionsmesseinrichtung umfassend einen Teilungsträger (14), auf dem eine Messteilung (16, 17) angeordnet ist, eine Abtasteinheit (12) zur Erzeugung von positionsabhängigen Abtastsignalen (S0, S90, R) durch Abtastung der Messteilung (16, 17) und eine Signalverarbeitungseinheit (20) zur Verarbeitung der Abtastsignale (S0, S90, R) zu Positionssignalen (P0, P90, P180, P270, PR, /PR). Die Erfindung ist dadurch gekennzeichnet, dass • eine Überwachungseinheit (30) vorgesehen ist, der wenigstens ein zu überwachendes Signal (X, X0, X90) zugeführt ist und von der, basierend auf der Überwachung des zu überwachenden Signals (X, X0, X90), ein Modifikationssignal (M, M0, M90) an eine Modifikationseinheit (40) ausgebbar ist, • der Modifikationseinheit (40) wenigstens ein Positionssignal (P0, P90, P180, P270, PR, /PR) zugeführt ist und von der Modifikationseinheit (40) das Positionssignal (P0, P90, P180, P270, PR, /PR) zur Übertragung wenigstens einer Statusmeldung modifizierbar und als Ausgangssignal (A0, A90, A180, A270, AR, /AR) an eine Folgeelektronik (80) ausgebbar ist und • die Modifikation basierend auf dem Modifikationssignal (M, M0, M90) durch Hinzufügen einer Störgröße zu dem wenigstens einen Positionssignal (P0, P90, P180, P270, PR, /PR) erfolgt. Weiter betrifft die Erfindung ein Verfahren zum Ausgeben einer Statusmeldung mit einer derartigen Positionsmesseinrichtung.
摘要:
An adjustment system and method is provided for determining a set position of a motor-driven adjustment part of a motor vehicle by a Hall sensor, which is arranged in a rotated magnetic field. The drive of the adjustment part is activated for a specified number of approaches of the adjustment part toward an end position. A counter is changed by a counting value upon each approach of the adjustment part toward the end position. A standardization drive to the end position is carried out when the specified number of approaches is reached, and each deactivation and/or activation of the Hall sensor is detected and the counter state of the counter is changed according to the number of deactivation and activation cycles.
摘要:
An electric motor protection system for protecting an electric motor of a household appliance includes a temperature sensor for sensing a temperature of the electric motor, a motor speed sensor for sensing a speed of the electric motor, a current sensing circuit for sensing an electric current supplied to the electric motor, a power control device for controlling the electrical power supplied to the electric motor, and a signal processing unit electrically connected to the temperature sensor, the motor speed sensor, the current sensing circuit, and the power control device. The signal processing unit is configured to make calculations and judgments based on the measurements of the temperature sensor, the motor speed sensor and the current sensing circuit, and a plurality of predetermined values, and to control the power control device accordingly so as to protect the motor from overheating, being overloaded, or driven by excessive current.
摘要:
Sensor failure in an oil and gas production system is monitored and detected by checking the consistency of the measurements of the sensor in question using a computer-based process model with the measurements of the other sensors in the system. The present invention also generates a back-up value for a failing sensor with the process model by identifying the value that is most consistent with the measurements of the other sensors in the system.
摘要:
There is described a method for detecting anomalies in a set of signals that normally exhibit analogous behaviour. The method comprises: acquiring a set of signals from at least one measurement source; designating a reference signal Sref from the acquired set of signals; computing a deviation Devi between the reference signal Sref at a reference point in time tref (Sref(tref)) and at least one of the acquired signals Si over time; and generating a deviation alarm trigger when the deviation meets a given deviation criteria.
摘要:
A remote device or module (100) sends data to a base station (260) when the change in data from the last transmission exceeds a predetermined threshold. The invention also allows for transmission at a minimal specific time interval. Additionally, the device allows for transmissions based on alarm or alerting conditions.
摘要:
A CPU (106) generates a reference value (root mean squared value) of sound level and outputs it to a DSP (105), the DSP generates a measured value of sound level (root mean squared value), and compares thus-generated measured value of sound level (root mean squared value) with the reference value (root mean squared value) of sound level received from the CPU, and outputs a signal expressing the result of comparison to a display device, to thereby enable comparison of the measured value of sound level (root mean squared value) with the reference value (root mean squared value) of sound level. Such comparison is made every time the sampling takes place in synchronization with the sampling frequency in an A/D converter (104).
摘要:
The invention relates to a sensor device, especially a threshold value sensor device comprising a sensor system for detecting an external measuring quantity, a switching system being provided for connecting a load circuit. Until now, the design of the switching system using transistors or electromechanical relays has always been subjected to compromise as far as the electronic operating capacity, the design of the circuit and the arrangement on or with the sensor device are concerned. According to the invention, this problem can be solved by providing a switching system having low-power control and a galvanic separation between the control circuit and the output circuit, the sensor system being formed independently from the load circuit.
摘要:
La présente invention concerne un détecteur 10 à contrôle de rotation, devant lequel passe une cible 19 dont on veut contrôler la fréquence de passage par rapport à une fréquence normale de passage, comprenant un organe capteur 11 relié à un microcontrôleur 20 qui délivre un signal de sortie binaire 15. Le détecteur 10 comporte des moyens de dialogue opérateur 30 branchés sur le microcontrôleur 20 afin de positionner le détecteur 10 en mode travail ou en mode apprentissage, lequel mode apprentissage permet au microcontrôleur 20 de mesurer la fréquence normale de passage et permet à un opérateur de sélectionner une marge de fonctionnement parmi une pluralité de marges prédéfinies, à l'aide des moyens de dialogue 30. Le microcontrôleur 20 calcule, à partir de la marge de fonctionnement sélectionnée, une fréquence de déclenchement et une fréquence de réenclenchement.