38results about How to "Meet the needs of simultaneous use" patented technology

The invention discloses a multi-screen display system. A current use mode of users is judged; and (N-X) groups of to-be-displayed data are sent to N display screens on the basis of the current use mode, N is greater than or equal to 2, and X is greater than or equal to 0 and is less than N. The multiple display screens of the system can share the same host system, the same contents or different contents can be enabled to be simultaneously displayed on a product of a multi-screen type, independent operations and display can be carried out on one display screen in the multiple screens by each person on the same machine, and a need of simultaneous multi-person use of a consumption-type electronic-product is satisfied; and in a large public place, the system improves an equipment utilization rate while display needs are satisfied, and largely saves public resources.

An embodiment of the invention provides a data service method in a home network, equipment and a system, relating to the communication field. Requirements of a plurality of data resource by an intelligent terminal in the home network can be satisfied. The data service method comprises the following steps: through a wireless network, a home network server receives an access request carrying an IP address of the intelligent terminal sent by the intelligent terminal, and establishes connection with the intelligent terminal; a service request which carries different service content indication information and is sent by the intelligent terminal is received; according to the different service content indication information in the service request, a corresponding service is started, and service interaction data is sent to the intelligent terminal. The embodiment of the invention is used for a home network data service system.

The invention discloses a two-stage low-pass filtering and amplifying, peak clipping and pulse modulation system based on linear driving. The system mainly comprises a peak clipping circuit, a pulse modulation circuit and a two-stage low-pass filtering and amplifying circuit, wherein the pulse modulation circuit is connected with the output end of the peak clipping circuit, and the two-stage low-pass filtering and amplifying circuit is connected with the output end of the pulse modulation circuit. The system is characterized by further comprising a linear driving circuit arranged between the peak clipping circuit and the pulse modulation circuit; the linear driving circuit is composed of a driving chip U2, a triode VT5, a triode VT6, a triode VT7, a triode VT8, a polar capacitor C10, a resistor R14 and the like; the positive electrode of the polar capacitor C10 is connected with the peak clipping circuit, and the negative electrode of the polar capacitor C10 is connected with a pin IN1 of the driving chip U2 after passing through a resistor R13; one end of the resistor R14 is connected with the collector electrode of the triode VT5, and the other end of the resistor R14 is connected with the base electrode of the triode VT7 after passing through a resistor R15. Under the action of the linear driving circuit, the system can provide a stable voltage and prevent the situation that the using effect and the service life of an electric appliance are affected by an unstable voltage.

The invention discloses an inverter system based on low-pass filtering. The inverter system is composed of a transformer T1, an inverter circuit and a grounding logic control circuit connected with the inverter circuit and is characterized in that a low-pass filtering circuit is arranged between the primary side of the transformer T1 and the logic control circuit; the low-pass filtering circuit is composed of an amplifier P1, a triode VT4, a capacitor C3, a capacitor C4, a resistor R8 and a capacitor C1; the negative electrode of the capacitor C3 is connected with the output end of the amplifier P1 and the positive electrode is connected with the base electrode of the triode VT4; the capacitor C4 is connected in parallel with the capacitor C3; one end of the resistor R8 is connected with the dotted terminal of an electric inductance coil L1 at the primary side of the transformer T1 and the other end is grounded via a resistor R7; the negative electrode of the capacitor C1 is connected with the inverse-phase input end of the amplifier P1 and the positive electrode is connected with the logic control circuit. The low-pass filtering circuit is arranged, so that the inverter system protects electric equipment from being damaged by third harmonic waves when large-load electric equipment is driven.

The invention relates to a combined type plug and socket structure, which mainly comprises a socket unit, wherein the socket unit comprises a main body, two side faces of the main body are respectively provided with a left end cover, a front cover and a right end cover, one side of the front cover is provided with a live wire plug pin, a grounding plug pin and a zero wire plug pin, the upper part of the main body and the side face opposite to the front cover are respectively provided with a jack for plug-in of another socket unit, the main body is internally provided with a live wire plug bush, a grounding plug bush and a zero wire plug bush, the live wire plug bush is connected with the live wire plug pin, the grounding plug bush is connected with the grounding plug pin, and the zero wire plug bush is connected with the zero wire plug pin. The combined type plug and socket structure disclosed by the invention has the beneficial effects that each socket unit is provided with a group of plug pins and two groups of jacks located on different planes, the jacks can be expanded by means of interconnection of the socket units so as to meet the requirement for using a plurality of electric appliances at the same time, the number of the socket units to be spliced can be increased or decreased as required, the jacks of the two socket units back and forth are not located on the same plane, so that the interference among the jacks is prevented, and the plugs are ensured to be used in a larger area way.

The invention discloses a phase-shift processing based low-pass filtering inverter system. The inverter system mainly comprises a transformer T1, an inverter circuit, a logic control circuit and a low-pass filtering circuit, wherein the logic control circuit is connected with the inverter circuit, and the low-pass filtering circuit is connected with a primary side of the transformer T1. The inverter system is characterized in that a phase-shift processing circuit is further arranged between the logic control circuit and the band-pass filtering circuit and comprises a phase-shift chip U1, a triode VT4, a triode VT5, a resistor R7, a polar capacitor C1 and the like, wherein one end of the resistor R7 is connected with a VCC+ pin of the phase-shift chip U1 while the other end of the resistor R7 is connected with an IN1 pin of the phase-shift chip U1, and a cathode of the polar capacitor C1 is connected with the IN1 pin of the phase-shift chip U1 after passing by a resistor R6 while an anode of the polar capacitor C1 is connected with an IN2 pin of the phase-shift chip U1. By the aid of the phase-shift processing circuit, good stability of the inverter system can be kept when the inverter system drives heavy-load electric equipment.

The present invention discloses a fast inverter system mainly consisting of an inverter circuit, a processing circuit connected with the inverter circuit, a voltage regulator circuit connected with the processing circuit, a low-pass filter circuit connected with the voltage regulator circuit and a transformer T1 connected with the low-pass filter circuit, wherein a switch circuit is further disposed at an input of the inverter circuit; the switch circuit consists of a triode VT1, a bidirectional trigger diode K, a resistor R2 with one end connected with the inverter circuit and the other end connected with a base of the triode VT1, a capacitor C1 with a cathode connected with the T2 pole of the bidirectional trigger diode K and an anode connected with the T1 pole of the bidirectional trigger diode K through the resistor R1 and the like. The fast inverter system of the present invention can speed up the activation of the inverter system under the action of the switch circuit, thereby improving the efficiency of the inverter system.

The invention discloses a low-pass filtering inverter system based on linear driving. The system is characterized by being composed of a transformer T1, an inverter circuit, a linear driving circuit connected with the inverter circuit, a logic control circuit connected with the linear driving circuit and a low-pass filtering circuit connected with the logic control circuit; the output end of the low-pass filtering circuit is connected with the primary side of the transformer T1; the linear driving circuit is composed of a driving chip U, a triode VT4, a triode VT4, a triode VT6, a triode VT7, a polar capacitor C5, a resistor R10 and the like; the positive electrode of the polar capacitor C5 is connected with the inverter circuit, and the negative electrode of the polar capacitor C5 is connected with a pin IN1 of the driving chip U after passing through a resistor R9; one end of the resistor R10 is connected with the collector electrode of the triode VT4, and the other end of the resistor R10 is connected with the base electrode of the triode VT6 after passing through a resistor R11. Since the low-pass filtering inverter system based on linear driving is provided with the linear driving circuit, when the inverter system is used for driving large-load electric equipment, the electric equipment can be protected against damage by triple frequency harmonic.

The invention discloses a phase processing based low-pass filtering LED voltage stabilizing system. The phase processing based low-pass filtering LED voltage stabilizing system mainly comprises a voltage transformation circuit, a two-stage low-pass filtering and amplification circuit connected with the voltage transformation circuit, a phase shifting circuit connected with the two-stage low-pass filtering and amplification circuit, a voltage stabilizing circuit connected with the phase shifting circuit and an output circuit connected with the voltage stabilizing circuit. The phase shifting circuit consists of a phase shifting chip U1, an audion VT4, an audion VT5, a resistor R12, a polar capacitor C13 and the like, wherein one end of the resistor R12 is connected with VCC+ tube pin of the phase shifting chip U1, the other end of the resistor R12 is connected with the IN1 tube pin of the phase shifting chip U1, the negative pole of the polar capacitor C12 is connected with the IN1 tube pin of the phase shifting chip U1 through a resistor 13, the positive pole of the polar capacitor C12 is connected with the IN2 tube pin of the phase shifting chip U1. By means of the phase shifting processing circuit, good stability is well ensured while the output power of the LED drive system can be amplified.

The invention relates to a double pulse combined type transformer, comprising an iron core, a coil and a support frame, wherein, the coil is three-phase; each phase is divided into three sections of an upper winding, a middle winding and a lower winding along the axial direction of the iron core; the upper winding, the middle winding and the lower winding respectively have a primary side coil anda secondary side coil; the spacing between the upper winding and the middle winding is greater than one third of the axial height of the upper winding; the primary side coil at the upper part of the upper winding adopts a D connection and the secondary side coil at the upper part adopts Y connection; the primary side coil at the middle part of the middle winding adopts D connection and the secondary side coil at the middle part adopts Y connection; the primary side coil at the lower part of the lower winding adopts D connection and the secondary side coil at the lower part adopts D connection;and the primary side coil at the middle part of the middle winding is in parallel connection with the primary side coil at the lower part of the lower winding through an outer lead wire. The invention can satisfy the requirements of using two groups of rectifying devices with different pulse waves simultaneously, thus greatly reducing device manufacturing cost and saving installation space.

The invention discloses a peak clipping pulse wave modulation system based on two-stage low-pass filter and amplification treatment. The peak clipping pulse wave modulation system based on two-stage low-pass filter and amplification treatment mainly comprises a peak clipping circuit and a pulse wave modulation circuit connected with the output end of the peak clipping circuit. The peaking clipping pulse wave modulation system based on the two-stage low-pass filter and amplification treatment is characterized in that a two-stage low-pass filter and amplification circuit is further arranged at the output end of the pulse wave modulation circuit, wherein the two-stage low-pass filter and amplification circuit consists of an amplifier P1, an amplifier P2, a triode VT2, a triode VT3, a capacitor C4, a resistor R6, a capacitor C5, a capacitor C6, and the like, wherein the positive electrode of the capacitor C4 is connected with the pulse wave modulation circuit, the negative electrode of the capacitor C4 is grounded; one end of the resistor R6 is connected with the positive phase input end of the amplifier 91 and the other end of the resistor R6 is connected with the positive electrode of the capacitor C4; the positive electrode of the capacitor C5 is connected with an inverted phase input end of the amplifier P1 after passing through a resistor R7, and the negative electrode of the capacitor C5 is connected with the negative electrode of the capacitor C4; and the capacitor C6 is connected in series between the output end and the inverted phase input end of the amplifier P1. By adopting the two-stage low-pass filter and amplification circuit, the peak clipping pulse wave modulation system disclosed by the invention can be used for amplifying the output power of the modulation system, so that the modulation system can meet the needs of simultaneously using more electrical appliances.

The invention discloses a multifunctional portable medical trolley. The multifunctional portable medical trolley comprises a trolley body, wherein the trolley body comprises a bottom frame, a main frame and a support, the main frame and the support are hinged to the two ends of the bottom frame, the main frame and the support comprise a main bracket and a branch bracket which are hinged to the two ends of the bottom frame through hinge mechanisms respectively, a leaning frame and a back frame are detachably connected to the main bracket and the branch bracket, a seat plate frame is detachably and rotationally connected to the back frame, and self-locking universal wheels are mounted on the hinge mechanisms at four corners of the bottom frame. The invention aims to provide the multifunctional portable medical trolley which is convenient and quick to disassemble and assemble, low in cost, flexible to deform and multifunctional.

The invention discloses a high-load inverter. The high-load inverter is characterized by being composed of a transformer T1, an inverter circuit, a logic control circuit connected with the inverter circuit, and a filter circuit connected with the logic control circuit, and the filter circuit is connected with the primary side of the transformer T1; the inverter circuit is composed of a field-effect transistor Q1, a field-effect transistor Q2, a triode VT1, a resistor R2, a diode D1, a diode D2 and the like, wherein one end of the resistor R2 is connected with the drain electrode of the field-effect transistor Q1, the other end of the resistor R2 is connected with the collector electrode of the triode VT1, the P electrode of the diode D1 passes through a resistor R1 and then is connected with the drain electrode of the field-effect transistor Q1, the N electrode of the diode D1 is connected with the collector electrode of the triode VT1, the P electrode of the diode D2 is connected with the grid electrode of the field-effect transistor Q2, and the N electrode of the diode D2 passes through a resistor R4 and then is connected with the base electrode of the diode VT1. The load capacity of the inverter is greatly improved, and the requirements for using high-power electric appliances or multipurpose electric appliances at the same time can be met.

The invention discloses a linear drive based two-stage low-pass filtering and amplification LED voltage stabilizing system. The linear drive based two-stage low-pass filtering and amplification LED voltage stabilizing system mainly comprises a voltage transformation circuit, a two-stage low-pass filtering and amplification circuit connected with the voltage transformation circuit, a voltage stabilizing circuit connected with the two-stage low-pass filtering and amplification circuit and an output circuit connected with the output end of the voltage stabilizing circuit and is characterized by further comprising a linear drive circuit connected with the voltage transformation circuit and the two-stage low-pass filtering and amplification circuit simultaneously. The linear drive circuit consists of a drive chip U1, an audion VT5, an audion VT6, an audion VT7, an audion VT8, a polar capacitor C13 and the like, wherein the positive pole of the polar capacitor C13 is connected with the voltage transformation circuit, the negative pole of the polar capacitor C13 is connected with the IN1 tube pin of the drive chip U1 through a resistor R12. The output power of the linear drive based two-stage low-pass filtering and amplification LED voltage stabilizing system can be amplified by means of the linear drive circuit, and the system can meet more LED simultaneous usage demands.

The invention discloses a multifunctional box cover of a spare tire storage box in an automobile trunk and belongs to the technical field of automobile accessories. The multifunctional box cover is characterized by comprising a folding table (1) and a plurality of folding stools (3), wherein the side edges of the boards of the plurality of folding stools (3) and the side edge of the table board (101) of the folding table (1) are detachably spliced into a rectangular board covering the upper side of the spare tire storage box in the automobile trunk, folding table legs (2) of the folding table (1) and folding stool legs (5) of the folding stools (3) are folded below the rectangular board respectively, and gaps are formed between each folding table leg (2) and the corresponding spare tire and between each folding stool (3) and the corresponding spare tire.. The box cover of the spare tire storage box is skillfully changed into a detachable spliced body comprising the foldable folding table and the foldable folding stools, the requirement for tables and chairs outdoors is met while the original function of the box cover is not affected, and the problems that the conventional foldable tables and chairs occupy larger automobile space and cannot meet requirement for simultaneous use of multiple people are solved.

The invention discloses a high-efficiency inversion system which is characterized by being mainly composed of a transformer T1, an inversion circuit, a processing circuit connected with the inversion circuit, a voltage stabilizing circuit connected with the processing circuit and a low-pass filter circuit connected with the voltage stabilizing circuit, wherein a primary side of the transformer T1 is connected with the low-pass filter circuit; the processing circuit is composed of a triode VT2, a one-way thyristor D5, a diode D4, a capacitor C1 and the like. An N pole of the diode D4 is connected with a control pole of the one-way thyristor D5; a P pole of the diode D4 is connected with an N pole of the one-way thyristor D5; a positive pole of the capacitor C1 is connected with an emitter of the triode VT2; and a negative pole of the capacitor C1 is connected with the P pole of the diode D4. The inversion system is provided with the processing circuit, so that the inversion efficiency of the inversion system is improved by the aid of the processing circuit and electric energy is saved.

The invention discloses a high-efficiency inversion system which is characterized by being mainly composed of a transformer T1, an inversion circuit, a processing circuit connected with the inversion circuit, a voltage stabilizing circuit connected with the processing circuit and a low-pass filter circuit connected with the voltage stabilizing circuit, wherein a primary side of the transformer T1 is connected with the low-pass filter circuit; the processing circuit is composed of a triode VT2, a one-way thyristor D5, a diode D4, a capacitor C1 and the like. An N pole of the diode D4 is connected with a control pole of the one-way thyristor D5; a P pole of the diode D4 is connected with an N pole of the one-way thyristor D5; a positive pole of the capacitor C1 is connected with an emitter of the triode VT2; and a negative pole of the capacitor C1 is connected with the P pole of the diode D4. The inversion system is provided with the processing circuit, so that the inversion efficiency of the inversion system is improved by the aid of the processing circuit and electric energy is saved.

The invention discloses a special socket with excellent heat dissipation effect for high-power electronic products. The socket comprises a socket body and a socket plug connected to the socket body, wherein the socket body is a cuboid; a two-hole socket or a three-hole socket is arranged on the surface of the socket body; a heat radiating groove is arranged at the lateral surface corresponding to the long side of the socket body; and a thermal conductive silicone sheet is attached to the heat radiating groove. The socket has good heat dissipation effect, the requirement for simultaneous usage of a plurality of high-power electronic products can be met, the number of the sockets in the modern work and life can be effectively reduced, and the power consumption management is facilitated.

The invention discloses an annular arrangement type multi-station multiband spectrum therapeutic instrument. On the basis of an existing infrared spectrum therapeutic instrument and an existing ultraviolet spectrum therapeutic instrument, the objective of the invention is to meet the requirements of hospitals for large-scale multi-station multi-band spectrum therapeutic instruments, the instrumentis arranged to be fixed; two existing infrared spectrum generation ends and two existing ultraviolet spectrum generation ends are integrated into a switchable spectrum illumination head, the multiband illumination head of the infrared spectrum and the ultraviolet spectrum is realized, a plurality of switchable spectrum irradiation heads are uniformly distributed on the upper end surface of the upper bottom plate in a circular manner, the working end of each switchable spectrum irradiation head faces the direction far away from the center of the upper bottom plate, a plurality of stations around upper bottom plate can be realized, so as to meet requirement of simultaneous use of plurality of patients in hospital; compared with an existing spectrum therapeutic instrument with the same number, the spectrum therapeutic instrument of the invention has the advantages that the occupied area is smaller, the manufacturing cost is lower, and the spectrum therapeutic instrument is particularly suitable for being used in large hospitals with the large patient diagnosis and treatment number and the insufficient hospital consulting room land.

An embodiment of the invention provides a data service method in a home network, equipment and a system, relating to the communication field. Requirements of a plurality of data resource by an intelligent terminal in the home network can be satisfied. The data service method comprises the following steps: through a wireless network, a home network server receives an access request carrying an IP address of the intelligent terminal sent by the intelligent terminal, and establishes connection with the intelligent terminal; a service request which carries different service content indication information and is sent by the intelligent terminal is received; according to the different service content indication information in the service request, a corresponding service is started, and service interaction data is sent to the intelligent terminal. The embodiment of the invention is used for a home network data service system.

The invention relates to a combined type plug and socket structure, which mainly comprises a socket unit, wherein the socket unit comprises a main body, two side faces of the main body are respectively provided with a left end cover, a bottom cover and a right end cover, one side of the bottom cover is provided with a live wire plug pin, a grounding plug pin and a zero wire plug pin, the upper part of the main body and the side face opposite to the bottom cover are respectively provided with a jack for plug-in of another socket unit, the main body is internally provided with a live wire plug bush, a grounding plug bush and a zero wire plug bush, the live wire plug bush is connected with the live wire plug pin, the grounding plug bush is connected with the grounding plug pin, and the zero wire plug bush is connected with the zero wire plug pin. The combined type plug and socket structure disclosed by the invention has the beneficial effects that each socket unit is provided with a group of plug pins and two groups of jacks located on different planes, the jacks can be expanded by means of interconnection of the socket units so as to meet the requirement for using a plurality of electric appliances at the same time, the number of the socket units to be spliced can be increased or decreased as required, the jacks of the two socket units back and forth are not located on the same plane, so that the interference among the jacks is prevented, and the plugs are ensured to be used in a larger area way.

The invention discloses a peak clipping pulse wave modulation system based on two-stage low-pass filter and amplification treatment. The peak clipping pulse wave modulation system based on two-stage low-pass filter and amplification treatment mainly comprises a peak clipping circuit and a pulse wave modulation circuit connected with the output end of the peak clipping circuit. The peaking clipping pulse wave modulation system based on the two-stage low-pass filter and amplification treatment is characterized in that a two-stage low-pass filter and amplification circuit is further arranged at the output end of the pulse wave modulation circuit, wherein the two-stage low-pass filter and amplification circuit consists of an amplifier P1, an amplifier P2, a triode VT2, a triode VT3, a capacitor C4, a resistor R6, a capacitor C5, a capacitor C6, and the like, wherein the positive electrode of the capacitor C4 is connected with the pulse wave modulation circuit, the negative electrode of the capacitor C4 is grounded; one end of the resistor R6 is connected with the positive phase input end of the amplifier 91 and the other end of the resistor R6 is connected with the positive electrode of the capacitor C4; the positive electrode of the capacitor C5 is connected with an inverted phase input end of the amplifier P1 after passing through a resistor R7, and the negative electrode of the capacitor C5 is connected with the negative electrode of the capacitor C4; and the capacitor C6 is connected in series between the output end and the inverted phase input end of the amplifier P1. By adopting the two-stage low-pass filter and amplification circuit, the peak clipping pulse wave modulation system disclosed by the invention can be used for amplifying the output power of the modulation system, so that the modulation system can meet the needs of simultaneously using more electrical appliances.