Hon Hai Precision Industry Co., Ltd.

Hong-fu Jin Precision Industry (shenzhen) Co., Ltd.

Huawei Technologies Co., Limited

Fu Tai Hua Industry (shenzhen) Co., Ltd.

Zhong Qin

Chi-Hsien Yeh

Yang Wang

Tao Huang

Jie Li

Siwei Luo

Yu Chen

Zheng-Jie Han

This application discloses a data access method and apparatus, and relates to the storage field. In this application, a write request is received; a destination address of a memory area corresponding to to-be-written data is obtained based on address indication information included in the write request; and the to-be-written data is written, in an append write manner, into the memory area indicated by the destination address. After the to-be-written data is written into the memory area, a read/write attribute corresponding to the destination address is set, so that data in the memory area cannot be modified, thereby effectively avoiding illegal tampering with the data stored in the memory area, and implementing read-only protection on data in a storage class memory (SCM) medium.

Append-only data access method and apparatus

A key-value (KV) storage method and apparatus, the method including receiving a write request, where the write request is associated with writing a first key and a first value, storing the first key in a first memory chip of a solid state drive (SSD), and storing the first value in a second memory chip of the SSD, where an erase count of the first memory chip is less than an erase count of the second memory chip, and creating a mapping relationship between the first key, a physical address of the first key, and a physical address of the first value, where the physical address of the first key indicates that the first key is stored in storage space of the first memory chip, and where the physical address of the first value indicates that the first value is stored in storage space of the second memory chip.

Key-value KV storage method and apparatus, and storage device

A PLC includes a single-chip, a DC power module, a relay output module, an I/O module, and a pulse output module. The single chip includes a single-chip timer, a hardware watchdog, a 11.0592M crystal, and an A/D converter module. A system program is burned into an EEPROM (Electrically Erasable Programmable Read-Only Memory) of the single-chip. The system program includes a programming module and a control module. A DC power module includes an anti jamming circuit, a first output port, and a second output port. The first output port and the second output port are respectively connected to the anti-jamming circuit, and the single-chip is connected to the first output port. A relay output module is connected to the second output port. An I/O module receives and sends digital signals.

Programmable logic controller

A PLC includes a single-chip, a relay output module, an I/O module, a pulse output module, a relay, and a servo motor. The single chip includes a single-chip timer, a hardware watchdog, a 11.0592M crystal, and an A/D converter module. A system program is burned into an EEPROM of the single-chip. The relay connected to the relay output module. The servo motor is connected to the pulse output module. The system program includes a programming module and a control module. The programming module includes a main function and a function subroutine library, and the main function calls the subroutines of the function subroutine library. The control module scans the input signals from the I/O module during predetermined period, and then generates output signals according to the control commands generated by the programming module, to control output of the relay output module and the pulse output module.

Programmable logic controller employing single-chip

A robotic claw includes a sleeve, a rod, a plurality of balls and a plunger. The sleeve comprises a mounting portion and a clamping portion. A mounting hole defined at an end of the mounting portion. A plurality of receiving through holes defined in the clamping portion, and an assembling hole communicating with the receiving through hole, and is defined at an end of the clamping portion. The balls are movably received in the receiving through holes correspondingly. The rod comprises an urging portion movably received in the sleeve to push the balls toward the receiving through holes. The plunger seals the assembling hole to prevent the balls from dropping out of the receiving through holes, and the balls can be mounted in the receiving through holes through the assembling hole.

Robotic claw and robot using same

A method for reloading workpieces includes providing a manipulator having a connecting base and a plurality of grasping assemblies arranged on the connecting base, providing a plurality of original workpieces and a plurality of machined workpieces positioned in a plurality of machining positions, grasping the original workpieces by at least one grasping assembly, with at least one grasping assembly vacant, grasping one machined workpiece by one vacant grasping assembly, rotating the connecting base, so that one original workpiece is placed in one machining position by one grasping assembly, further rotating the connecting base until another vacant grasping assembly is opposite to another machining position, and repeating grasping the machined workpieces from the machining positions and placing the original workpieces on the machining positions until a last original workpiece is placed on one machining position. The manipulator used in the present method for reloading workpieces is also provided.

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