Abstract: A CAN bus explosion proof node structure is disclosed which includes a physical parameter sensor, a physical parameter measurement circuit, a master controller, a data storage module, a communication interface module, and a power voltage and current limiting module. The master controller performs service processing of the digital signals, compares them with respective threshold levels to determine whether dangerous situations occur for the explosion proof node, and sends out an alarm when dangerous situations occur for the explosion proof node. The power voltage and current limiting module limits a maximum open circuit voltage and a maximum short circuit current of input power so that explosive gas and dust will not ignite when the nodes are in normal operation or experience failures.

Abstract: A digital load cell has a force measurement element, a power incentive module, a signal detection module, a microprocessor, a communication module, a current control module and a configuration control module. First configuration control information configures the signal detection module to use a corresponding detection mode to perform signal conversion. Second configuration control information configures the processor to use one or more corresponding kernels or processors for running. Third configuration control information configures the communication module to use a corresponding communication protocol, terminal matching and impedance control for communication. Fourth configuration control information configures the current control module to use the on/off, voltage values and current values of the power incentive module, the signal detection module, the microprocessor and the communication module.

Abstract: A method is disclosed for detecting power interruption duration of an electronic device. The method can include establishing a curve model of linearly synthesized values of temperature sensor readings versus time; after power-on, acquiring each of the initial temperature values by respective temperature sensors mounted on the electronic device, and transmitting the temperature initial values to a microprocessor; calculating a linearly synthesized value of the temperature sensor readings of the electronic device according to a power-on duration for this time and a stored curve model, and storing the linearly synthesized value of the temperature sensor readings as a basis for calculating the power interruption duration thereafter. When the electronic device is powered on again after power interruption, a linearly synthesized value of the temperature sensor readings according to the power-on time for this time can be calculated, and used for calculating the power interruption duration thereafter.

Abstract: A weighing system and a weighing method are disclosed having uninterrupted weighing functions. A plurality of load cells in the weighing system are arranged so that each load cell has a local small neighborhood, the local small neighborhood being defined by four neighboring points in front, back, left, and right of the load cell and four points on diagonal directions in a matrix. A weighing control module polls the load cells to determine whether there is failed load cell(s), and performs a calculation: W.=f(W1,W2,W3,W4,W5,W6,W7), where f is a non-linear mapping; and W1 . . . W8 represents weighing outputs of load cells corresponding to the eight points in the local small neighborhood so as to calculate an estimated weighing output of the failed load cell.

Abstract: A load cell wireless kit as disclosed can include a load cell and a kit component removably attached to an outside of the load cell. Exemplary embodiments are free of cables and a junction box, and can provide a great convenience for use and save power consumption, without affecting normal system functions.

Abstract: The present invention relate to a bus network having a safety gate of a substantial safety isolation type. The bus network comprises a first region, a second region, and signal isolators. The first region has disposed therein a first bus and has distributed therein one or more first processing devices, one or more first transceivers, one or more first controllers, and one or more gateways. The second region has disposed therein a second bus and has distributed therein one or more second processing devices and one or more second transceivers. The signal isolators are disposed between the first region and the second region. An isolation device driving terminal and an output terminal on one side of the signal isolator are respectively connected to a transmitting terminal and a receiving terminal of a second controller.

Abstract: The present invention relates to a load cell topology network comprising at least one multi-branch cable and a plurality of load cells. Each multi-branch cable comprises at least three connectors and one or more groups of signal lines; each group of signal lines comprise at least three branch signal lines, with one end of each branch signal line connected to at least three connectors described respectively and correspondingly, and the other end of each branch signal line connected to a common node, thereby realizing the interconnection of the same kinds of electrical signals between respective connectors; each connector is adapted to be connected to another multi-branch cable or a load cell. The plurality of load cells are electrically connected by the multi-branch cable to form a topology network.

Abstract: A disclosed measurement system is constituted by a plurality of sensors coupled together via a bus. Each sensor can include a master system part and a slave system part. The measurement system can include a master sensor, wherein when the master system part of the master sensor is activated, the master sensor is used to collect, aggregate, and analyze information from all the slave sensors and/or from the master sensor per se; and a plurality of slave sensors, wherein when the master system part of each slave sensor is dormant while the slave system part of each slave sensor is activated, the slave sensor is used to collect and process information and deliver collected and processed information to the master sensor. When a fault occurs in the master sensor, one of the plurality of slave sensors can switch to become a new master sensor.

Abstract: An analog sensor with digital compensation function includes a deformation part generating a deformation relating to a pressure sensed by the analog sensor; a strain gauge connected to the deformation part and generating a change in resistance relating to the deformation; a strain gauge bridge connected to the strain gauge and transferring the change in the resistance of the at least one strain gauge to output a first analog signal; and an analog-to-digital conversion module converting the first analog signal to a first digital signal, representative of weight. A signal processing and output circuit compensates the first digital signal and converts it into a second analog signal.

Abstract: A CAN bus explosion proof node structure is disclosed which includes a physical parameter sensor, a physical parameter measurement circuit, a master controller, a data storage module, a communication interface module, and a power voltage and current limiting module. The master controller performs service processing of the digital signals, compares them with respective threshold levels to determine whether dangerous situations occur for the explosion proof node, and sends out an alarm when dangerous situations occur for the explosion proof node. The power voltage and current limiting module limits a maximum open circuit voltage and a maximum short circuit current of input power so that explosive gas and dust will not ignite when the nodes are in normal operation or experience failures.

Abstract: The present invention relates to a load cell topology network comprising at least one multi-branch cable and a plurality of load cells. Each multi-branch cable comprises at least three connectors and one or more groups of signal lines; each group of signal lines comprise at least three branch signal lines, with one end of each branch signal line connected to at least three connectors described respectively and correspondingly, and the other end of each branch signal line connected to a common node, thereby realizing the interconnection of the same kinds of electrical signals between respective connectors; each connector is adapted to be connected to another multi-branch cable or a load cell. The plurality of load cells are electrically connected by the multi-branch cable to form a topology network.

Abstract: A weighing system and a weighing method are disclosed having uninterrupted weighing functions. A plurality of load cells in the weighing system are arranged so that each load cell has a local small neighborhood, the local small neighborhood being defined by four neighboring points in front, back, left, and right of the load cell and four points on diagonal directions in a matrix. A weighing control module polls the load cells to determine whether there is failed load cell(s), and performs a calculation: W.=f (W1, W2, W3, W4, W5, W6, W7), where f is a non-linear mapping; and W1 . . . W8 represents weighing outputs of load cells corresponding to the eight points in the local small neighborhood so as to calculate an estimated weighing output of the failed load cell.

Abstract: A load cell wireless kit as disclosed can include a load cell and a kit component removably attached to an outside of the load cell. Exemplary embodiments are free of cables and a junction box, and can provide a great convenience for use and save power consumption, without affecting normal system functions.