4results about How to "Change connection relationship" patented technology

The utility model provides a kind of wideband tunable microwave photon frequency hopping communication system, including data transmitting device, data transmitting device includes four Mach-Zehnder modulators, and each Mach-Zehnder modulator receives the signal output by quadrature amplitude modulator;Carrier signal source outputs the carrier signal containing four different wavelengths to first wave division multiplexer, and first wave division multiplexer outputs four carrier signals to first optical switch, and first optical switch outputs four carrier signals to four Mach-Zehnder modulators, and first optical switch also receives the first control signal output by first frequency hopping sequence controller, and Mach-Zehnder modulator uses respective carrier signal to modulate received digital signal and then output;First micro electromechanical device is provided in first optical switch, and first micro electromechanical device has first mirror and can change the rotation angle of first mirror.The utility model can improve the security of data transmission, and production cost is low.

The utility model relates to the technical field of measuring instruments, and discloses a three-dimensional single-arm measuring instrument with a limiting function, which comprises a single-arm measuring instrument body and a measuring arm arranged on the single-arm measuring instrument body, one end of the measuring arm is provided with a measuring assembly, the measuring assembly comprises a measuring head and a probe, the probe is fixedly connected with one end of the measuring head, and the other end of the measuring head is provided with a limiting device. An installation assembly is arranged on the measuring arm, the measuring assembly is connected with the measuring arm through the installation assembly, a limiting assembly is arranged on the installation assembly, the installation assembly comprises an installation sleeve, a plurality of L-shaped grooves arranged at equal intervals are formed in the installation sleeve, L-shaped blocks are clamped in the L-shaped grooves, and the L-shaped blocks are fixedly connected with the peripheral side of the same probe. According to the utility model, the installation assembly is arranged, so that a worker can rotate the probe to drive the measuring head to move in the installation sleeve, thereby changing the connection relation between the L-shaped block and the L-shaped groove, and the worker can conveniently take down the measuring head and the probe while preliminarily limiting the probe.

A control device, a multi-operator control method, a hardware scheduler, an accelerator, and a computing system are disclosed. In this embodiment, multiple first cache allocation instructions are decoded by an instruction decoding circuit and then executed by an instruction execution circuit. Caches are allocated to multiple operators from a shared cache pool, enabling data to be transferred between operators through the caches. This achieves soft connections and fast data interaction between operators. While ensuring processing efficiency, the connection relationship between operators can be changed according to application needs, improving the application flexibility of hardware accelerators using multiple operators.

This invention provides a method, apparatus, and fault injection system for testing electronic control units (ECUs). The system injects faults into the ECU to determine whether the ECU meets electrical load standards under different fault conditions. The system includes a DC power supply, a relay module, and a fault injection control module. The DC power supply powers the relay module and the fault injection control module. The relay module, the DC power supply, and the fault injection control module are connected in series. The ECU, the DC power supply, the relay module, and the load are connected in series. The fault injection control module alters the connection relationship between the moving contacts and normally closed and normally open contacts of at least two relays in the relay module at preset time intervals, thus subjecting the ECU to different fault states. This automates the fault injection process during ECU testing.