57results about How to "Prevent misconnection" patented technology

The present invention relates to a dry vacuum pump unit capable of achieving ultimate pressure of about 1 Pa. The vacuum pump unit includes a main pump (15) disposed at an outside-pressure side, and a booster pump (16) disposed at a vacuum side. The booster pump (16) and the main pump (15) are coupled in series. The booster pump (16) has a higher pumping speed than that of the main pump (15). Each of the main pump (15) and the booster pump (16) includes a pair of pump rotors (52a and 52b), a casing (50) having an inlet port and an outlet port, and a pair of magnet rotors (54 and 54) rotatable with the pair of pump rotors.

The invention provides a method, a device and a system for securely transmitting data. The method comprises the following steps: identifying a two-dimensional code provided by a first terminal; decrypting an encrypted check field according to a preset decryption key, and determining a check code and a transmission identifier; when the check field is correct, sending a second data transmission request to a server according to a server address and a port number, wherein the second data transmission request includes a local flag and the check field encrypted according to the decryption key; and receiving an encryption protocol issued by the server after the validity of the second data transmission request is verified, and transmitting data to the server according to the encryption protocol. The method only needs to identify the two-dimensional code, and is easy to operate. Moreover, a user name and a password do not need to be input, and the operation process is safe, so that the problemof leakage of the user name and password is solved. Moreover, no information is transmitted to the server before correct identification of the check field in the two-dimensional code, thereby effectively preventing the second terminal from connecting an illegal server by mistake and avoiding information leakage.

The invention provides a multi-pole connector which can correspond with multiple poles of an interface and realizes space saving of an interface part. Furthermore the multi-pole connector can correspond with a multilayer configuration in which a plurality of conductor connecting parts are configured on a mounting substrate in a vertical direction. The multi-pole connector is provided with a plurality of divided connectors (7,8) which are obtained through respectively holding conductors (2,3) on divided housings (5,6) that are divided from the housing (4) and have different shapes. A joint end surface part of one divided housing (5) in the divided housings (5,6) which are adjacent with each other is provided with a key embedding part (16) for insertion of a connecting key (15). Through embedding the connecting key (15) into the key embedding part (16), the connecting key (15) is clamped between the joint end surface parts in a manner of bestriding the joint end surface parts, thereby joining the two divided housings (5,6), thereby connecting the divided connectors (7,8) which are adjacent with each other.

The invention relates to an intelligent entrance guard control system and an intelligent entrance guard control method. The intelligent entrance guard control system comprises a ranging signal source, a Bluetooth module and a mobile phone, as well as a data transceiver module, an entrance guard control module and an access machinery device which are sequentially connected with one another, wherein the Bluetooth module is connected with the data transceiver module; and the ranging signal source and the Bluetooth module are wirelessly connected with the mobile phone respectively. According to the invention, a manner of opening a door by approaching to the entrance guard, similar to the traditional entrance guard card manner, is realized by using the mobile phone, the operation is simple and rapid, ranging is performed by utilizing the ranging signal source, the Bluetooth module of the entrance guard system is scanned by the mobile phone only when a user reaches a certain specified area, the condition that other users cannot be connected due to long-distance error connection is avoided, and the condition that the users are wrongly connected due to extremely long Bluetooth communication distance can be avoided. A door opening instruction is immediately transmitted to the entrance guard control module after the Bluetooth module is successfully connected, so that time consumed by complicated operations is shortened, and the actual application requirements can be well met.

The present invention relates to a dry vacuum pump unit capable of achieving ultimate pressure of about 1 Pa. The vacuum pump unit includes a main pump (15) disposed at an outside-pressure side, and a booster pump (16) disposed at a vacuum side. The booster pump (16) and the main pump (15) are coupled in series. The booster pump (16) has a higher pumping speed than that of the main pump (15). Each of the main pump (15) and the booster pump (16) includes a pair of pump rotors (52a and 52b), a casing (50) having an inlet port and an outlet port, and a pair of magnet rotors (54 and 54) rotatable with the pair of pump rotors.

The invention provides a pot and stove binding method and device and a cooking system, and the method comprises the steps: obtaining a first identity and a second identity of a pot; and if the first identity identifier is matched with the second identity identifier, binding the cookware and the stove. By means of the pot and stove binding method and device, the technical problem that in the related art, a pot and a stove are prone to being bound mistakenly is solved, mistaken connection between the pot and the stove is avoided, and efficient and automatic binding between the pot and the stoveis achieved.

The invention relates to a dual-polarline resectoscope and solves problems of positive-negative joints mis-insertion, poor sealing effect and inconvenient assembling and detachment of a resectoscope in the prior art. The resectoscope comprises an external sheath, an internal sheath, an operator, an endoscope and an electrode main body, wherein a main body sealing sleeve covers the endoscope and the electrode man body; the main body sealing sleeve is connected into an internal sheath back end connection port in a sealed way; the main body sealing sleeve is provided with an endoscope hole and an electrode hole; an electrode sealing sleeve is further embedded into the inner wall of the back end of the electrode hole; the back end of the electrode sealing sleeve is provided with a sealing wrapping head; and a dual-polar socket and a dual-polarline cooperated with dual-polar socket are arranged on the operator. The wrapping head can movably and tightly wrap up the outer wall of an electrode main body during the movement of the electrode main body, so water leakage can be prevented and sealing effect can be further improved; by the use of the dual-polarline, connection of positive wires and negative wires can be unnecessary, so a structure is simplified and operator work can be facilitated; and wrong connection can be also prevented.

The present invention relates to a dry vacuum pump unit capable of achieving ultimate pressure of about 1 Pa. The vacuum pump unit includes a main pump (15) disposed at an outside-pressure side, and a booster pump (16) disposed at a vacuum side. The booster pump (16) and the main pump (15) are coupled in series. The booster pump (16) has a higher pumping speed than that of the main pump (15). Each of the main pump (15) and the booster pump (16) includes a pair of pump rotors (52a and 52b), a casing (50) having an inlet port and an outlet port, and a pair of magnet rotors (54 and 54) rotatable with the pair of pump rotors.

A switch node provided with a switch, an input interface and an output interface. The input interface is adapted to couple to a first communication link to receive a first TDM frame having a user payload field containing a first user data from the first communication link, and a frame overhead field containing a first identification. The input interface is configured to validate the first identification in the frame overhead field and reject the first TDM frame responsive to the first identification being invalid, and to forward the first user data to the switch responsive to the first identification being valid. The output interface is adapted to couple to a second communication link. The output interface is configured to receive the first user data from the switch, and to generate a second TDM frame having a second user payload field containing the first user data, and a second frame overhead field containing a second identification that is different from the first identification. The output interface is also configured to transmit the second TDM frame onto the second communication link.

The present invention provides a multi-pole connector capable of corresponding to multi-polarization of the interface, realizing space-saving of the interface part, and also capable of arranging a plurality of conducting body connection parts in the vertical direction on a mounting substrate. Multi-layer configuration correspondence. Equipped with a plurality of divided connectors (7, 8) that respectively hold conductors (2, 3) on each of the divided housings (5, 6) in the shape of dividing the housing (4) into a plurality of parts. The joint end surface of one of the split casings (5, 6) adjacent to each other is formed with a key fitting part (16) for the connection key (15) to be embedded. (16) Embedding the connecting key (15), so that the connecting key (15) is sandwiched between the joint end faces across the joint end faces to join the two split shells (5, 6), thereby connecting adjacent Each split connector (7, 8).

The invention relates to the technical field of communication, in particular to a communication method and device based on a two-dimensional code and a lifting table. The communication method comprises the following steps: a controller acquires the address information of a communication module and sends the address information and the product information to a display module; the display module generates and displays the two-dimensional code according to the address information and the product information; and an intelligent terminal scans the displayed two-dimensional code and establishes communication with the communication module. According to the invention, the following effects can be realized: when the intelligent terminal is connected with a communication module, the intelligent terminal does not need to search all surrounding communication modules and then select connection, but directly scans the two-dimensional code to ensure accurate connection, so that the phenomenon of connection error is prevented, and the intelligent terminal is convenient for a user to use; and the two-dimensional code is displayed through the display module, and the aging or the loss of the two-dimensional code is avoided.

The invention discloses an electrical apparatus provided with a wrong connection preventing mechanism, which is structured in a way that, on a vertical inner wall (1B1) of a housing vertical part of opposite housing vertical parts (1B) of a terminal device, a housing side wrong connection preventing component (N1) is installed, also, on one vertical side wall of opposite vertical side walls (P4) of a plug (P), a plug side wrong connection preventing component (N2) is installed, when the plug is tabled in a plug tabling concave portion (C1) in a mode that the housing side wrong connection preventing component and the plug side wrong connection preventing component are opposite, the housing side wrong connection preventing component and the plug side wrong connection preventing component are in a state of normal tabling. The electrical apparatus in the invention can practically prevent the circumstance that the plug is connected with the plug tabling concave portion of the terminal device in a state of wrong connection.

A vehicle control device for controlling a vehicle having a drive source and an automatic transmission connected to the drive source and having a power transmission mechanism having a forward coupling element, the vehicle control device having : The first control unit executes the driving source stop control during running to stop the driving source and set the automatic transmission in a neutral state when the driving source stop condition is satisfied while the driving source is stopped; the second control unit , after the driving source stop canceling condition is satisfied during running, the forward coupling element is coupled based on the input and output rotational speeds of the power transmission mechanism.

The invention relates to a circuit breaker of which an unthickened breaker shell can improve the function of load side terminals. In the circuit breaker (1) used in a single-phase three-wire circuit, an operating rod (3) for switching on or off the circuit is arranged on the upper surface of a thin box breaker shell (2); three load side terminals (4) and three power side terminals (5) are respectively arranged on the front surface and the back surface of the breaker shell (2) in the vertical direction; the front surface of the breaker shell (2) is provided with a terminal port (7) for connecting an electric wire (9) with quick-connect terminal joints of the load side terminals (4); the upper side of the terminal port (7) is provided with a confirmation window (11) for confirming the connecting state of the electric wire (9), and the lower side of the terminal port (7) is provided with an inserting port (12) for electrically connecting a measuring terminal of a measuring instrument with the quick-connect terminal joints; and a display mechanism is arranged behind the confirmation window (11) and in the breaker shell (2).

The invention provides a wrong connection prevention mobile terminal and method, and the mobile terminal comprises a touch screen which extends to the edge of the lower surface of the mobile terminal and is a multipoint capacitive touch screen. The mobile terminal also comprises a detection module which is connected with the control module, and the detection module is controlled by the control module to detect whether a to-be-connected event appears on the touch screen or not, and also is used for detecting whether there is a contact point on a left screen and / or right screen or not. The mobile terminal also comprises a judgment module which is connected with the control module, and judges whether the contact point appearing on the left screen and / or right screen enters in a wrong connection mode or not, thereby judging whether the touch screen triggers a touch screen event for connecting the to-be-connected event or not. The mobile terminal is combined with conventional hardware, effectively avoids wrong connection when the mobile terminal is placed to be close to the body of a user, and provides convenience for the user.

The invention belongs to the technical field of a railway lorry pneumatic control system, and particularly relates to a coal hopper car whole group unloading control system. An air storage cylinder communicates with an exhaust plug door I through an air storage cylinder branch pipe; the exhaust plug door I communicates with an action valve; the action valve communicates with a check value; the check valve communicates with a three-way joint; the three-way joint is respectively connected with an exhaust plug door II through a control pipe and a main air inlet pipe through an air inlet branch pipe; the exhaust plug door II communicates with the action valve; a combined cut-off plug door is arranged between the air inlet branch pipe and the main air inlet pipe; the main air inlet pipe communicates with a left rotating folding angle plug door; the left rotating folding angle plug door communicates with an air source. The coal hopper car whole group unloading control system has the advantages that the requirement of bottom door opening and closing of whole car marshalling unloading of the coal hopper car is met; the car unloading efficiency is improved; the operation personnel are reduced; meanwhile, the injury on personnel due to unloading dust can be avoided.