Intelligence is from opening road lamp system
Technical field
The present invention relates to lighting field, be specifically related to street lamp.
Background technology
Street lamp is often referred to installation on utility poles, is used for the light fixture of roadway illumination along street wall, highway etc. Along with the development of society, the consumption that makes of street lamp is also gradually increased. Street lamp is not only substantial amounts on using, and the power of single street lamp is relatively big, lighting time is very long. Therefore street lamp consumes the huge electric energy in electrical network, and powering to electrical network brings great burden. In order to reduce street lamp energy consumption, reducing the burden that electrical network is caused, some section has begun to adopt LED street lamp, thus reaching certain energy-saving effect. According to statistics, the whole nation has at least 2.5 hundred million street lamps, with 400 watts of average every street lamp, lights calculating in 10 hours every day. The power consumption of every day is 1,000,000,000 kilowatt hours, and annual energy consumption is 365,000,000,000 kilowatt hours. And Daya Bay nuclear power plant's year generating capacity is 15,000,000,000 kilowatt hours. That is the street lamp energy consumption in the whole nation, nearly needs 24 nuclear power station supplies could meet demand. While street lamp high energy consumption, it is possible to there is the huge energy saving space.
Under observation finding, existing street lamp is mostly unified unlatching at night. In spite of needing vehicle or pedestrian needs illumination, street lamp all can be in opening. Do not find the practical application having further intelligentized control method street lamp in reality. If having a kind of intelligence from opening road lamp system, it is possible to open according to the intelligentized control street lamp of road vehicle and pedestrian's situation, a large amount of electric energy can be saved. Particularly all the more so in the less section of artificial abortion at night. But also can there is following defect from opening road lamp system in existing intelligence, it is impossible to open street lamp at a distance, about 10m can only be shifted to an earlier date and open street lamp; Easily by adverse weather conditions, can not open under the weather such as heavy rain, dense fog, sandstorm; Street lamp is caused not open after intelligence control system fault; There is monitoring blind area.
Summary of the invention
It is an object of the invention to provide a kind of intelligence from opening road lamp system, to solve above-mentioned technical problem.
Technical problem solved by the invention can realize by the following technical solutions:
Intelligence is from opening road lamp system, including at least two street lamps being arranged on road, described street lamp includes luminescent device, for supporting the light pole of described luminescent device, also include a street lamp control system, described street lamp control system includes one for sensing the traffic responsive sensing system of pedestrian or vehicle condition on road, a microprocessor system, and described traffic responsive sensing system connects described microprocessor system;
Described microprocessor system is also connected with a luminescent device for controlling described luminescent device luminance and controls module, and described luminescent device controls module and connects described luminescent device;
Described luminescent device controls module and includes a control circuit, an IGCT being connected with described control circuit, and described IGCT connects described luminescent device;
Described microprocessor system exports signal to described control circuit, and control circuit controls the cut-off of described IGCT, and described luminescent device stops luminescence;
Described microprocessor system stops exporting signal to described control circuit, and described turn on thyristors, described luminescent device is lighted.
When the pedestrian on road or vehicle are within the induction range of described traffic responsive sensing system, traffic responsive sensing system is toggled and responds, corresponding signal is sent to microprocessor system, microprocessor system controls module according to received signal to luminescent device and sends control signal, luminescent device controls module control luminescent device and lights or increase brightness, thus providing roadway illumination for pedestrian or vehicle. The present invention is by exporting electric current restriction turn on thyristors, and then controls street lamp extinguishing. When assuming the microprocessor system fault of street lamp, the signal of microprocessor system in most cases can be in forfeiture state, microprocessor system stops exporting signal to described control circuit, and therefore street lamp is in opening when main switch powers on. And then solve in prior art, when street lamp control system breaks down, it will cause the technology barrier that street lamp can not be opened.
Described street lamp control system also includes a communication module, sets up described at least two the communication connection between street lamp control system by described communication module;
Described microprocessor system connects described communication module;
The induced signal sensed is passed to described microprocessor system by described traffic responsive sensing system, and described microprocessor system passes information to other described street lamp control systems again through described communication module. By communication module, under the effect of microprocessor system so that at least two street lamp mutual perception situation about lighting of communication, and then coordinate respective to light situation. The situation that street lamp can not be opened is caused, thus reducing existence monitoring blind area after can also reducing street lamp control system fault.
Described communication module adopts the communication module with directional transmissions function. Such as infrared transmission, the radio communication module etc. being provided with beam antenna.
Described communication module adopts with the infrared communication module of infrared mode communication, to be communicated by infrared mode. Described infrared communication module includes an infrared emission mechanism and an infrared receiver mechanism, in order to completes infrared signal and launches and IR signal reception. Described infrared emission mechanism adopts the infrared emission mechanism of directional transmissions, in order to increase signal transmitting range. The infrared emission mechanism of described directional transmissions, it is possible to be directly adopt the infrared signal radiated element being provided with plus lens, it is also possible to otherwise converge.
Described communication module adopts the radio communication module communicated in radio magnetic wave mode, to be communicated by wireless system. Described radio communication module includes a radio transmitter structure and a radio reception mechanism, in order to complete transmitting and the reception of radio signal. Employing wireless system communicates, and compares with infrared or laser mode, and wireless system communication is not easily blocked, it is to avoid the defect that cannot communicate because there is barrier between two adjacent street lamps.
The communication module of described street lamp is at least set up with the communication module of three street lamps and is communicated;
After the traffic responsive sensing system of described street lamp senses induced signal, described microprocessor system controls module by luminescent device and controls luminescent device luminescence, and sends illuminated message by communication module at least three street lamps setting up communication;
After at least three described street lamps of foundation communication receive illuminated message, the microprocessor system of at least three described street lamps controls luminescent device luminescence respectively. Realize and multiple street lamp communications, light many street lamp purposes.
The transmission range of described radio communication module can be set as required by described microprocessor system. Preferred 30m~the 500m of transmission range of described radio communication module, or 300m~500m. Described street lamp can be set up with other street lamp in transmission range and communicate.
When the transmission range of described radio communication module is set to about 30m~100m, the radio communication module being particularly suitable for adjacent two or several street lamps communicates. Light in advance street lamp distance should more than 30m~100m time, the radio communication module of adjacent street lamp can by illuminated message successively relay, pass to the street lamp in set point, complete lighting or increasing Brightness Duty of street lamp in certain limit, meet the requirement lighting street lamp distance in advance.
When the transmission range of described radio communication module is set to 300m~500m, being particularly suitable for toggled street lamp control system, disposable and many street lamps within the scope of 300m~500m radio communication modules complete to communicate.
Described communication module includes two radio communication modules, and the transmitting antenna of described radio communication module adopts beam antenna. So that increasing signal transmitting range.
Described traffic responsive sensing system can include infrared induction sensor. Infrared induction sensor can include infrared two-way emission type sensor, and described infrared two-way emission type sensor includes an infrared emission mechanism, an infrared receiver mechanism, in order to completes infrared signal and launches and IR signal reception. Described infrared emission mechanism is located on a light pole, and described infrared receiver mechanism is arranged on another light pole of described light pole offside, forms an infrared induction region between two light poles.
Infrared induction sensor can also adopt active infra-red sensing system, and the sensor of active infra-red sensing system adopts active infra-red sensor, in order to carries out whether having people or vehicle to pass through on sensing road. Active infra-red sensing system has technology maturation, stable performance, detection accuracy advantages of higher.
Infrared induction sensor can also include a pyroelectric infrared sensor system, and the sensor of pyroelectric infrared sensor system adopts a pyroelectric infrared sensor. By the pyroelectric sensor heat to monitor people on road or vehicle comes out, and then judge whether road has people or vehicle process, pyroelectric infrared sensor system has the advantages such as cost is low, power consumption is low, circuit is simple.
Described street lamp control system is separately positioned at least three described street lamps of road homonymy, and adjacent at least two street lamps at least three described street lamps are communicated by described communication module;
After the traffic responsive sensing system of a described street lamp at least three described street lamps senses induced signal, it is luminous that described microprocessor system controls described luminescent device, and sending illuminated message to adjacent at least one street lamp by described communication module, described illuminated message includes transmission street lamp quantity information;
After the communication module of another the described street lamp at least three described street lamps receives illuminated message, it is luminous that the microprocessor system of another described street lamp controls luminescent device, and transmission street lamp quantity information is subtracted one, send the illuminated message comprising transmission street lamp quantity information to adjacent street lamp by described communication module;
The transmission street lamp quantity information that a described street lamp at least three described street lamps receives, for for the moment, no longer sends illuminated message to adjacent street lamp. Above-mentioned design can control street lamp and light quantity, and luminous signal is in transmittance process, and transmission street lamp quantity information changes successively according to program. After reaching set transmission street lamp quantity information, no longer transmit, and then realize street lamp and light quantity control.
Described adjacent street lamp also includes the street lamp on road opposite; The street lamp control system of the street lamp on road opposite includes a microprocessor system, communication module, luminescent device control module, communication module connects microprocessor system, microprocessor system is also connected with the luminescent device for controlling luminescent device luminance and controls module, is not provided with traffic responsive sensing system.
Described microprocessor system judges whether the traffic responsive sensing system of described street lamp senses induced signal, and described traffic responsive sensing system senses induced signal;
Described microprocessor system judges whether the described communication module of described street lamp receives the illuminated message that adjacent street lamp sends within the setting time, and judges that the illuminated message received for the last time derives from front or rear;
When described communication module receives the illuminated message that rear street lamp sends, described microprocessor system forwards adjacent street lamp sends illuminated message;
When the communication module of described street lamp receives the illuminated message that front street lamp sends, described microprocessor system rearward adjacent street lamp sends illuminated message.
When described communication module does not receive illuminated message, described microprocessor system forwards all sends illuminated message with the adjacent street lamp at rear.
The described setting time can be the delay time that street lamp is lighted. Above-mentioned design achieves optimization and turns on light sequentially, improves capacity usage ratio further, it is possible to realize differentiating vehicle heading.
Certainly open road lamp system also includes the shell of a described street lamp control system of placement to described intelligence, and described shell rear is provided with a sheet metal, and described sheet metal is fixed by screws on described light pole. The width of sheet metal is preferably greater than the width of shell. Owing to sheet metal has certain bending property, it is possible to meet difformity, different size of light pole fixing.
Described shell rear is additionally provided with a hold-down bolt, and described hold-down bolt is used for propping up described sheet metal, so that described shell and described light pole fixation.
Described shell is connected with the emitting portion of described traffic responsive sensing system by a universal drive shaft, and described shell is connected with described communication module by another universal drive shaft.
Described shell is connected with the emitting portion of described traffic responsive sensing system by a ball-joint, and described shell is connected with described communication module by another ball-joint;
It is provided with a locking bolt between bulb and the ball wrist of described ball-joint, after described bulb position adjustment, is bolted on ball wrist by locking. So that traffic responsive sensing system according to on-the-spot needs, can regulate the induction region in street lamp front, communication module according to on-the-spot needs, can regulate and the communication between adjacent street lamp. It is particularly suitable for use with the design as communication module of the laser-correlation system.
Beneficial effect: owing to adopting technique scheme, the present invention is effectively increased capacity usage ratio, has significant energy-saving effect. Adopt wireless mode to communicate and can reduce wiring. When transforming especially for the street lamp being complete track laying, reduce wiring and can be substantially reduced transformation difficulty, and be substantially reduced cost. The present invention when street lamp control system breaks down, can also still keep the normal operation of street lamp.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention;
Fig. 2 is the circuit diagram of street lamp control system of the present invention;
Fig. 3 is the circuit structure diagram of the luminescent device control module of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, the present invention is expanded on further below in conjunction with being specifically illustrating.
With reference to Fig. 1, Fig. 2, intelligence is from opening road lamp system, including at least two street lamps being arranged on road, street lamp includes luminescent device 11, for supporting the light pole 12 of luminescent device 11, also include a street lamp control system 2, street lamp control system 2 includes one for sensing traffic responsive sensing system 21, microprocessor system 22 of pedestrian or vehicle condition on road, and traffic responsive sensing system 21 connects microprocessor system 22. Microprocessor system 22 is also connected with a luminescent device for controlling luminescent device 11 luminance and controls module 23, and luminescent device controls module 23 and connects luminescent device 11. Also include a communication module 24, set up the communication connection between at least two street lamp control system 2 by communication module 24. Microprocessor system 22 connects communication module 24. The induced signal sensed is passed to microprocessor system 22 by traffic responsive sensing system 21, and microprocessor system 22 passes information to other street lamp control systems 2 again through communication module 24. When the pedestrian on road or vehicle are within the induction range of traffic responsive sensing system 21, traffic responsive sensing system 21 responds, corresponding signal is sent to microprocessor system 22, microprocessor system 22 controls module 23 according to received signal to luminescent device and sends control signal, luminescent device control module 23 controls luminescent device 11 and lights or increase brightness, thus providing roadway illumination for pedestrian or vehicle. Additionally by communication module 24, under the effect of microprocessor system 22 so that at least two street lamp mutual perception situation about lighting of communication, and then coordinate respective to light situation. The situation that street lamp can not be opened is caused, thus reducing monitoring blind area after can also reducing street lamp control system 2 fault.
Communication module 24 adopts the communication module 24 with directional transmissions function. Communication module 24 adopts with the infrared communication module of infrared mode communication, to be communicated by infrared mode. Infrared communication module includes infrared emission mechanism and infrared receiver mechanism, in order to completes infrared signal and launches and IR signal reception. Infrared emission mechanism adopts the infrared emission mechanism of directional transmissions, in order to increase signal transmitting range. Infrared emission mechanism, it is possible to be directly adopt the infrared signal radiated element being provided with plus lens, it is also possible to otherwise converge. Infrared signal radiated element can adopt infrared diode.
Communication module 24 can also adopt the radio communication module communicated in radio magnetic wave mode, to be communicated by wireless system. Radio communication module includes a radio transmitter structure and a radio reception mechanism, in order to complete transmitting and the reception of radio signal. Employing wireless system communicates, and compares with infrared or laser mode, and wireless system communication is not easily blocked, it is to avoid the defect that cannot communicate because there is barrier between two adjacent street lamps.
Preferred 30m~the 500m of transmission range of radio communication module, or 300m~500m. Street lamp can be set up with other street lamp in transmission range and communicate. Can the transmission range of setting wireless telecommunication module as required by microprocessor system 22.
When the transmission range of radio communication module is set to about 30m~100m, the radio communication module being particularly suitable for adjacent two or several street lamps communicates. Light in advance street lamp distance should more than 30m~100m time, the radio communication module of adjacent street lamp can by illuminated message successively relay, pass to the street lamp in set point, complete lighting or increasing Brightness Duty of street lamp in certain limit, meet the requirement lighting street lamp distance in advance.
Adjacent street lamp also includes the street lamp on road opposite. The street lamp control system 2 of the street lamp on road opposite includes a microprocessor system 22, communication module 24, luminescent device control module 23, communication module 24 connects microprocessor system 22, microprocessor system 22 is also connected with the luminescent device for controlling luminescent device 11 luminance and controls module 23, traffic responsive sensing system 21 can be not provided with, to reduce cost.
When the transmission range of radio communication module is set to about 500m, being particularly suitable for toggled street lamp control system, disposable and many street lamps within the scope of 500m radio communication modules complete to communicate.
Preferably, the communication module 24 of street lamp is at least set up with the communication module 24 of three street lamps and is communicated. After the traffic responsive sensing system 21 of street lamp senses induced signal, microprocessor system 22 controls module 23 by luminescent device and controls luminescent device 11 luminescence, and sends illuminated message at least three street lamps setting up communication. After at least three street lamps of foundation communication receive illuminated message, it is luminous that the microprocessor system 22 of at least three street lamps controls luminescent device 11 respectively. Realize and multiple street lamp communications, light many street lamp purposes.
Can the transmission range of setting wireless telecommunication module as required by microprocessor system 22. Preferred 300m~the 500m of transmission range of radio communication module. Street lamp can be set up with other street lamp in transmission range and communicate. Communication module includes two radio communication modules, and the transmitting antenna of radio communication module adopts beam antenna. So that increasing signal transmitting range.
Traffic responsive sensing system 21 can adopt infrared induction sensor. Infrared induction sensor can include infrared two-way emission type sensor, and infrared two-way emission type sensor includes an infrared emission mechanism, an infrared receiver mechanism, in order to completes infrared signal and launches and IR signal reception. Infrared emission mechanism is located on a light pole 12, and infrared receiver mechanism is arranged on another light pole of light pole offside, forms an infrared induction region between two light poles 12.
Infrared induction sensor can also include a pyroelectric infrared sensor system, and the sensor of pyroelectric infrared sensor system adopts a pyroelectric infrared sensor. By the pyroelectric sensor heat to monitor people on road or vehicle comes out, and then judge whether road has people or vehicle process, pyroelectric infrared sensor system has the advantages such as cost is low, power consumption is low, circuit is simple.
Traffic responsive sensing system 21 may also include active infra-red sensing system, and the sensor of active infra-red sensing system adopts active infra-red sensor, in order to carries out whether having people or vehicle to pass through on sensing road. Active infra-red sensing system has technology maturation, stable performance, detection accuracy advantages of higher.
Traffic responsive sensing system 21 may also include a ultrasonic transducer system, and the sensor in ultrasonic transducer system is ultrasonic sensor. Ultrasonic transducer system has technology maturation, stable performance, detection accuracy is high, be easily achieved the advantages such as speed measuring function.
Street lamp control system 2 is separately positioned at least three street lamps of road homonymy, and adjacent two street lamps at least three street lamps are communicated by communication module 24. After the traffic responsive sensing system 21 of a street lamp at least three street lamps senses induced signal, it is luminous that microprocessor system 22 controls luminescent device 11, and sending illuminated message to adjacent at least one street lamp by communication module 24, illuminated message includes transmission street lamp quantity information. After the communication module 24 of another street lamp at least three street lamps receives illuminated message, it is luminous that the microprocessor system 22 of street lamp controls luminescent device 11, and transmission street lamp quantity information is subtracted one, send the illuminated message comprising transmission street lamp quantity information to adjacent street lamp by communication module 24. The transmission street lamp quantity information that a street lamp at least three street lamps receives, for for the moment, no longer sends illuminated message to adjacent street lamp. Above-mentioned design can control street lamp and light quantity, and luminous signal is in transmittance process, and transmission street lamp quantity information changes successively according to program. After reaching set transmission street lamp quantity information, no longer transmit, and then realize street lamp and light quantity control.
Microprocessor system 22 judges whether the traffic responsive sensing system 21 of street lamp senses induced signal, and traffic responsive sensing system 21 senses induced signal. Microprocessor system 22 judges whether the communication module 24 of street lamp receives the illuminated message that adjacent street lamp sends within the setting time, and judges that the illuminated message received for the last time derives from front or rear. When communication module receives the illuminated message that rear street lamp sends, microprocessor system 22 forwards adjacent street lamp sends illuminated message. When the communication module 24 of street lamp receives the illuminated message that front street lamp sends, microprocessor system 22 rearward adjacent street lamp sends illuminated message. When communication module 24 does not receive illuminated message, microprocessor system 22 forwards all sends illuminated message with the adjacent street lamp at rear. The setting time can be the delay time that street lamp is lighted. Above-mentioned design achieves optimization and turns on light sequentially, improves capacity usage ratio further, it is possible to realize differentiating vehicle heading.
With reference to Fig. 1, road homonymy is provided with street lamp 1a, street lamp 1b, street lamp 1c, street lamp 1d, and after street lamp 1b receives the illuminated message that other street lamps send, street lamp 1b lights. Microprocessor system 22 judges whether the traffic responsive sensing system 21 of street lamp senses induced signal, traffic responsive sensing system 21 senses induced signal, then microprocessor system 22 controls the communication module 24 of street lamp and sends illuminated message to adjacent street lamp. Street lamp 1b receives the street lamp 1a illuminated message sent, and microprocessor system only sends illuminated message to street lamp 1c. Illuminated message comprises the transmission street lamp quantity information that setting value is N. Street lamp 1c receives the street lamp 1b illuminated message sent, and the luminescent device 11 of street lamp 1c is luminous, and the traffic actuation detector system 21 of street lamp 1c senses induced signal, then the illuminated message including transmission street lamp quantity information N-1 is sent to street lamp 1d by street lamp 1c.
The sensing part of traffic responsive sensing system 21 can be arranged on other street lamps, make to exist between sensing part and street lamp certain distance, such as, with reference to Fig. 1, the sensing part of the traffic responsive sensing system 21 of street lamp 1c is arranged on another street lamp 1d at least two ten meters of street lamp 1c front, such street lamp 1c can vehicle distances street lamp 1c remotely time just can light, it is possible to be prevented effectively from vehicle and come and just light near street lamp 1c, it is impossible to the problem of offer good illumination. The sensing part of street lamp 1c, it is possible to arrange multiple, be separately positioned on street lamp 1c front street lamp 1d light pole on, on the light pole of the street lamp 1b at street lamp 1c rear. It is arranged on the sensing part on street lamp 1b, it is possible to be respectively associated the traffic responsive sensing system 21 of street lamp 1c, the traffic responsive sensing system 21 of street lamp 1a. Sensing part can be that at least two set street lamp control systems 2 provide signal simultaneously, saves the quantity of sensing part.
Luminescent device controls module 23 and includes a control circuit, the IGCT VT being connected with control circuit, an IGCT VT connection luminescent device 11. Microprocessor system 22 exports signal to control circuit, and control circuit controls IGCT VT cut-off, and luminescent device 11 stops luminescence. Microprocessor system 22 stops exporting signal to control circuit, and IGCT VT turns on, and luminescent device 11 is lighted. The present invention is by exporting electric current restriction IGCT VT conducting, and then control street lamp extinguishes. When assuming microprocessor system 22 fault of street lamp, the signal of microprocessor system 22 in most cases can be in forfeiture state, microprocessor system 22 stops exporting signal to control circuit, and therefore street lamp is in opening when main switch powers on. And then solve in prior art, when street lamp control system 2 breaks down, it will cause the technology barrier that street lamp can not be opened.
With reference to Fig. 3, control circuit includes optocoupler T1, resistance R2, commutation diode D1, resistance R2, commutation diode D1, optocoupler T1 connect, and the controlled end of optocoupler T1 connects microprocessor system 22, and the negative electrode of commutation diode D1 connects the controlled end of IGCT VT by resistance R1. IGCT VT connects with luminescent device 11. Owing to the power supply of luminescent device 11 is civil power, it it is alternating current, therefore including two groups of control circuits, two groups of control circuits are symmetrical arranged, in one of them loop, when microprocessor system 22 exports luminous signal to optocoupler T1, optocoupler T1 turns on, by resistance R1 short circuit, after electric current flows through commutation diode D1 by R2, flow back to mains circuit through optocoupler T1, do not trigger bidirectional thyristor VT. When microprocessor system 22 stops output illuminated message, optocoupler T1 ends, and after electric current flows through commutation diode D1 by R2, triggers IGCT VT through R1, and then opens street lamp.
Certainly open road lamp system also includes the shell of a placement street lamp control system 2 to intelligence, and shell rear is provided with a sheet metal, and sheet metal is fixed by screws on light pole 12. The width of sheet metal is preferably greater than the width of shell. Owing to sheet metal has certain bending property, it is possible to meet difformity, different size of light pole 12 fixing. Shell rear is additionally provided with a hold-down bolt, and hold-down bolt is used for propping up sheet metal, so that shell and light pole 12 fixation. Shell is connected with the emitting portion of traffic responsive sensing system 21 by a universal drive shaft, and shell is connected with communication module 24 by another universal drive shaft. Shell is connected with the emitting portion of traffic responsive sensing system 21 by a ball-joint, and shell is connected with communication module 24 by another ball-joint. It is provided with a locking bolt between bulb and the ball wrist of universal drive shaft, after bulb position adjustment, is bolted on ball wrist by locking. So that traffic responsive sensing system 21 according to on-the-spot needs, can regulate the sensation region in street lamp front. Communication module 24 according to on-the-spot needs, can regulate and the communication between adjacent street lamp. When specifically arranging, the left side of shell, right side, front shell wall be respectively equipped with port, left side, right side port rear be provided with the transceiver part of communication module 24, in order to communicate with adjacent street lamp. The port rear in front is provided with the sensing part of traffic responsive sensing system 21. It is particularly suitable for use with the design as communication module of the laser-correlation system. Generating laser is arranged on described universal drive shaft.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described. Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention. Claimed scope is defined by appending claims and equivalent thereof.